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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/webvtt/rendering
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/webvtt/rendering')
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+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, repositioning (up) when 2 cues overlap completely</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cueText {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video">
+ <span class="cue">
+ <div><span class="cueText">This is another test subtitle</span></div>
+ <div><span class="cueText">This is a test subtitle</span></div>
+ </span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_completely_move_up.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_completely_move_up.html
new file mode 100644
index 0000000000..aca503f4b6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_completely_move_up.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, repositioning (up) when 2 cues overlap completely</title>
+<link rel="match" href="2_cues_overlapping_completely_move_up-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 2;" onseeked="this.onseeked = null; takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/2_cues_overlapping_completely_move_up.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down-ref.html
new file mode 100644
index 0000000000..8262b9e598
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down-ref.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, repositioning (down) when 2 cues overlap partially</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 50%;
+ left: 0;
+ right: 0;
+ margin-top: -4.5px;
+ text-align: center
+}
+#cue2 {
+ position: absolute;
+ top: 50%;
+ left: 0;
+ right: 0;
+ margin-top: 4.5px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue" id="cue1"><span>This is a test subtitle</span></span><span class="cue" id="cue2"><span>This is another test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down.html
new file mode 100644
index 0000000000..9620456780
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_down.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, repositioning (down) when 2 cues overlap partially</title>
+<link rel="match" href="2_cues_overlapping_partially_move_down-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 2;" onseeked="this.onseeked = null; takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/2_cues_overlapping_partially_move_down.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up-ref.html
new file mode 100644
index 0000000000..22a711af68
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up-ref.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, repositioning (down) when 2 cues overlap partially</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cueText {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.cueTextGoingUp {
+ position: relative;
+ top: -1.8px; /* 1% height of video's height */
+}
+</style>
+<div class="video">
+ <span class="cue">
+ <div><span class="cueText cueTextGoingUp">This is another test subtitle</span></div>
+ <div><span class="cueText">This is a test subtitle</span></div>
+ </span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up.html
new file mode 100644
index 0000000000..2dedb8ee12
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_cues_overlapping_partially_move_up.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, repositioning (down) when 2 cues overlap partially</title>
+<link rel="match" href="2_cues_overlapping_partially_move_up-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 2;" onseeked="this.onseeked = null; takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/2_cues_overlapping_partially_move_up.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks-ref.html
new file mode 100644
index 0000000000..464fbcff8b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, 2 tracks enabled at the same time</title>
+<script src="/common/reftest-wait.js"></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cueText {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video">
+ <video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <span class="cue">
+ <div><span class="cueText">This is a <u>test subtitle</u></span></div>
+ <div><span class="cueText">This is a test subtitle</span></div>
+ </span>
+</div>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks.html
new file mode 100644
index 0000000000..1a29be86a4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/2_tracks.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, 2 tracks enabled at the same time</title>
+<link rel="match" href="2_tracks-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <track src="support/test_underline.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+document.getElementsByTagName('track')[1].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks-ref.html
new file mode 100644
index 0000000000..3f155dd0ad
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks-ref.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, 3 tracks enabled at the same time</title>
+<script src="/common/reftest-wait.js"></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cueText {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video">
+ <video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <span class="cue">
+ <div><span class="cueText">This is a <b>test subtitle</b></span></div>
+ <div><span class="cueText">This is a <u>test subtitle</u></span></div>
+ <div><span class="cueText">This is a test subtitle</span></div>
+ </span>
+</div>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks.html
new file mode 100644
index 0000000000..bdb45f1110
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/3_tracks.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, 3 tracks enabled at the same time</title>
+<link rel="match" href="3_tracks-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <track src="support/test_underline.vtt">
+ <track src="support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ document.getElementsByTagName('track')[1].track.mode = 'showing';
+ document.getElementsByTagName('track')[2].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center-ref.html
new file mode 100644
index 0000000000..90f011dc57
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center.html
new file mode 100644
index 0000000000..c7ab0dee17
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center</title>
+<link rel="match" href="align_center-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50-ref.html
new file mode 100644
index 0000000000..ed5e3a5e8e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center, position:50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50.html
new file mode 100644
index 0000000000..38df5e1bb2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_50.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center, position:50%</title>
+<link rel="match" href="align_center_position_50-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_position_50.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50-ref.html
new file mode 100644
index 0000000000..4d7553a8b7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center, position greater than 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ right: 0px;
+ width: 64px;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video>
+ <div class="cue">
+ <span class="cueText">foo</span>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50.html
new file mode 100644
index 0000000000..0f69e57251
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center, position greater than 50%</title>
+<link rel="match" href="align_center_position_gt_50-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_position_gt_50.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size-ref.html
new file mode 100644
index 0000000000..73db73ed6a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center, position greater than 50%, size greater than maximum size</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0px;
+ right: 0px;
+ width: 64px;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video>
+ <div class="cue">
+ <div><span class="cueText">Awe</span></div>
+ <div><span class="cueText">som</span></div>
+ <div><span class="cueText">e!!</span></div>
+ <div><span class="cueText">!</span></div>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size.html
new file mode 100644
index 0000000000..869b5f669e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_gt_50_size_gt_maximum_size.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center, position greater than 50%, size greater than maximum size</title>
+<link rel="match" href="align_center_position_gt_50_size_gt_maximum_size-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_position_gt_50_size_gt_maximum_size.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50-ref.html
new file mode 100644
index 0000000000..baa6511046
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center, position less than 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0px;
+ right: 0;
+ width: 64px;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video>
+ <div class="cue">
+ <span class="cueText">foo</span>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50.html
new file mode 100644
index 0000000000..953e74183b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center, position less than 50%</title>
+<link rel="match" href="align_center_position_lt_50-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_position_lt_50.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size-ref.html
new file mode 100644
index 0000000000..aeaf757cc6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center, position less than 50%, size greater than maximum size</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0px;
+ left: 0px;
+ width: 64px;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video>
+ <div class="cue">
+ <div><span class="cueText">Awe</span></div>
+ <div><span class="cueText">som</span></div>
+ <div><span class="cueText">e!!</span></div>
+ <div><span class="cueText">!</span></div>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size.html
new file mode 100644
index 0000000000..174894bf0c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_position_lt_50_size_gt_maximum_size.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center, position less than 50%, size greater than maximum size</title>
+<link rel="match" href="align_center_position_lt_50_size_gt_maximum_size-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_position_lt_50_size_gt_maximum_size.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped-ref.html
new file mode 100644
index 0000000000..55aed284b7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:center with long cues</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped.html
new file mode 100644
index 0000000000..3773593f0f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_center_wrapped.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:center with long cues</title>
+<link rel="match" href="align_center_wrapped-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_center_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end-ref.html
new file mode 100644
index 0000000000..23c7c71aff
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:end</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: right;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end.html
new file mode 100644
index 0000000000..c413579b23
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:end</title>
+<link rel="match" href="align_end-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_end.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped-ref.html
new file mode 100644
index 0000000000..eee75f138f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:end with long cues</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: right
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped.html
new file mode 100644
index 0000000000..97e9ef7bf2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_end_wrapped.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:end with long cues</title>
+<link rel="match" href="align_end_wrapped-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_end_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start-ref.html
new file mode 100644
index 0000000000..b1bae4af0b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:start</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: left;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start.html
new file mode 100644
index 0000000000..955b231b02
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:start</title>
+<link rel="match" href="align_start-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_start.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped-ref.html
new file mode 100644
index 0000000000..45cb287e2f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, align:start with long cues</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: left;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped.html
new file mode 100644
index 0000000000..0664f38e63
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/align_start_wrapped.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, align:start with long cues</title>
+<link rel="match" href="align_start_wrapped-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/align_start_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles-ref.html
new file mode 100644
index 0000000000..d4bd2b74c2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, &lt;audio&gt; should not have subtitles</title>
+<style>
+audio {
+ width: 320px;
+ height: 180px;
+ outline: solid
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<audio autoplay controls onplaying="this.onplaying = null; this.pause(); this.currentTime = 0; takeScreenshotDelayed(1000)">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+</audio>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles.html
new file mode 100644
index 0000000000..65f559f901
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/audio_has_no_subtitles.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, &lt;audio&gt; should not have subtitles</title>
+<link rel="match" href="audio_has_no_subtitles-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+audio {
+ width: 320px;
+ height: 180px;
+ outline: solid
+}
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<audio autoplay controls onplaying="this.onplaying = null; this.pause(); this.currentTime = 0; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</audio>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/background.png b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/background.png
new file mode 100644
index 0000000000..6d16cc84c4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/background.png
Binary files differ
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic-ref.html
new file mode 100644
index 0000000000..182bc69277
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, basic</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic.html
new file mode 100644
index 0000000000..ca77eb734b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/basic.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, basic</title>
+<link rel="match" href="basic-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby-ref.html
new file mode 100644
index 0000000000..cc4df4178e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><ruby>.<rt><bdo dir="ltr">&#x05D0;&#x05D0;</bdo></rt>ab)<rt>x</rt></ruby></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby.html
new file mode 100644
index 0000000000..ed2b2e019d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/bidi_ruby.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi ruby</title>
+<link rel="match" href="bidi_ruby-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/bidi_ruby.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment-ref.html
new file mode 100644
index 0000000000..78ca8979c9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment-ref.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<html class="reftest-wait">
+<title>WebVTT rendering, set align start and the cue contains two lines with different writing directions</title>
+<script src="/common/reftest-wait.js"></script>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: start;
+ unicode-bidi: plaintext;
+}
+.cueText {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video">
+ <video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <span class="cue">
+ <span class="cueText">Hello!</span><br>
+ <span class="cueText">שלום!</span>
+ </span>
+</div>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment.html
new file mode 100644
index 0000000000..2b6cd76c20
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/start_alignment.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, set align start and the cue contains two lines with different writing directions</title>
+<link rel="match" href="start_alignment-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/start_alignment.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0-ref.html
new file mode 100644
index 0000000000..3c968da7c2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+002E LF U+05D0</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>.<br><bdo dir=ltr>&#x05D0;ab)</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0.html
new file mode 100644
index 0000000000..e47cc127df
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_LF_u05D0.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+002E LF U+05D0</title>
+<link rel="match" href="u002E_LF_u05D0-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u002E_LF_u05D0.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0-ref.html
new file mode 100644
index 0000000000..492b194163
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+002E U+2028 U+05D0</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>.<br><bdo dir=ltr>(ab&#x05D0;</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0.html
new file mode 100644
index 0000000000..0c0ec1842e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2028_u05D0.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+002E U+2028 U+05D0</title>
+<link rel="match" href="u002E_u2028_u05D0-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u002E_u2028_u05D0.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0-ref.html
new file mode 100644
index 0000000000..b2c03406d5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+002E U+2029 U+05D0</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>.<br><bdo dir=ltr>&#x05D0;ab)</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0.html
new file mode 100644
index 0000000000..49b217594d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u002E_u2029_u05D0.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+002E U+2029 U+05D0</title>
+<link rel="match" href="u002E_u2029_u05D0-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u002E_u2029_u05D0.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first-ref.html
new file mode 100644
index 0000000000..56e47f0e08
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+0041 first</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><bdo dir=ltr>Aab)</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html
new file mode 100644
index 0000000000..487d4ab400
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+0041 first</title>
+<link rel="match" href="u0041_first-ref.html">
+<!--
+0041..005A ; L # L& [26] LATIN CAPITAL LETTER A..LATIN CAPITAL LETTER Z
+http://www.unicode.org/Public/UNIDATA/extracted/DerivedBidiClass.txt
+-->
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u0041_first.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first-ref.html
new file mode 100644
index 0000000000..8ea95ae597
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+05D0 first</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><bdo dir=ltr>(ab&#x05D0;</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first.html
new file mode 100644
index 0000000000..4075d20564
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u05D0_first.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+05D0 first</title>
+<link rel="match" href="u05D0_first-ref.html">
+<!--
+05D0..05EA ; R # Lo [27] HEBREW LETTER ALEF..HEBREW LETTER TAV
+http://www.unicode.org/Public/UNIDATA/extracted/DerivedBidiClass.txt
+-->
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u05D0_first.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first-ref.html
new file mode 100644
index 0000000000..f5816cf62d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+0628 first</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><bdo dir=ltr>(ab&#x0628;</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first.html
new file mode 100644
index 0000000000..8524375d0d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u0628_first.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+0628 first</title>
+<link rel="match" href="u0628_first-ref.html">
+<!--
+0620..063F ; AL # Lo [32] ARABIC LETTER KASHMIRI YEH..ARABIC LETTER FARSI YEH WITH THREE DOTS ABOVE
+http://www.unicode.org/Public/UNIDATA/extracted/DerivedBidiClass.txt
+-->
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u0628_first.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir-ref.html
new file mode 100644
index 0000000000..c1dfd3b6c1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi U+06E9 no strong direction</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><bdo dir=ltr>&#x06E9;)</bdo></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir.html
new file mode 100644
index 0000000000..a3c69c8adb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/u06E9_no_strong_dir.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bidi U+06E9 no strong direction</title>
+<link rel="match" href="u06E9_no_strong_dir-ref.html">
+<!--
+06E9 ; ON # So ARABIC PLACE OF SAJDAH
+http://www.unicode.org/Public/UNIDATA/extracted/DerivedBidiClass.txt
+-->
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/u06E9_no_strong_dir.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr-ref.html
new file mode 100644
index 0000000000..42b6a5dac0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+ <meta charset="UTF-8">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ text-align: center;
+ unicode-bidi: -webkit-plaintext;
+ unicode-bidi: plaintext;
+ direction: ltr;
+ writing-mode: vertical-lr;
+ -webkit-writing-mode: vertical-lr;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><ruby>右<rt>みぎ</rt></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...<br>二行目</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr.html
new file mode 100644
index 0000000000..c5e7d2b15d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_lr.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, vertical growing left to right</title>
+<link rel="match" href="vertical_lr-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/bidi_vertical_lr.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl-ref.html
new file mode 100644
index 0000000000..737c695553
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+ <meta charset="UTF-8">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ right: 0;
+ text-align: center;
+ unicode-bidi: -webkit-plaintext;
+ unicode-bidi: plaintext;
+ direction: ltr;
+ writing-mode: vertical-rl;
+ -webkit-writing-mode: vertical-rl;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span><ruby></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...<br>二行目</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl.html
new file mode 100644
index 0000000000..9afdb2dd10
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/bidi/vertical_rl.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, vertical growing right to left</title>
+<link rel="match" href="vertical_rl-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../support/bidi_vertical_rl.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long-ref.html
new file mode 100644
index 0000000000..85683c7ba5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, size:50%, cue too long - should be hidden</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+</style>
+<div class="video"><span class="cue"></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long.html
new file mode 100644
index 0000000000..1dc19e6259
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/cue_too_long.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, size:50%, cue too long - should be hidden</title>
+<link rel="match" href="cue_too_long-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/very_long_cue.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities-ref.html
new file mode 100644
index 0000000000..d12188cfa4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, decoding of escaped entities</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>Here are the escaped <br>entities: &amp; &lt; &gt; &lrm; &rlm; &nbsp;</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities.html
new file mode 100644
index 0000000000..c5061f5f39
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/decode_escaped_entities.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, decoding of escaped entities</title>
+<link rel="match" href="decode_escaped_entities-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/decode_escaped_entities.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition-ref.html
new file mode 100644
index 0000000000..874cef1fa0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue reposition after enabling controls</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ outline: solid;
+ width: 320px;
+ height: 240px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+ font-size: 50px;
+}
+</style>
+<div class="video"><span class="cue"><span>Foo</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition.html
new file mode 100644
index 0000000000..43c0acef74
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue reposition after disabling controls</title>
+<link rel="match" href="disable_controls_reposition-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ font-family: Ahem, sans-serif;
+ font-size: 50px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video autoplay controls onplaying="this.onplaying = null;
+ this.pause();
+ this.currentTime = 0;
+ setTimeout(function(video){
+ video.controls = false;
+ }, 100, this);
+ takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src=support/foo.vtt>
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size-ref.html
new file mode 100644
index 0000000000..dd48970516
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, a cue's align, position, line and size properties is possible to override using the DOM APIs</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ right: 51.2px;
+ width: 64px;
+ text-align: left
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>There is nothing to see here people, move on</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size.html
new file mode 100644
index 0000000000..4134b46153
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, a cue's align, position, line and size properties is possible to override using the DOM APIs</title>
+<link rel="match" href="dom_override_cue_align_position_line_size-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ c.align = 'start';
+ c.position = 80;
+ c.line = 0;
+ c.size = 20;
+ c.text = 'There is nothing to see here people, move on';
+ updateRendering();
+ }
+ function updateRendering() {
+ var v = document.getElementById('video');
+ v.onplaying = function() {
+ this.onplaying = null;
+ this.pause();
+ takeScreenshotDelayed(1000);
+ };
+ v.play();
+ }
+</script>
+<video id="video" width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused-ref.html
new file mode 100644
index 0000000000..fccabb9bba
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, a cue's align, position, line and size properties should be rerendered when overriding them using the DOM APIs while paused</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ right: 51.2px;
+ width: 64px;
+ text-align: left
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This test tests</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused.html
new file mode 100644
index 0000000000..7fc81bb2ea
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_align_position_line_size_while_paused.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, a cue's align, position, line and size properties should be rerendered when overriding them using the DOM APIs while paused</title>
+<link rel="match" href="dom_override_cue_align_position_line_size_while_paused-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ c.align = 'start';
+ c.position = 80;
+ c.line = 0;
+ c.size = 20;
+ c.text = 'This test tests';
+ takeScreenshotDelayed(1000);
+ }
+</script>
+<video id="video" width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line-ref.html
new file mode 100644
index 0000000000..7569d28e4d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, it is possible to override cue line with the DOM APIs</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line.html
new file mode 100644
index 0000000000..f133708a8f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_line.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, it is possible to override cue line with the DOM APIs</title>
+<link rel="match" href="dom_override_cue_line-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ c.line = 0;
+ updateRendering();
+ }
+ function updateRendering() {
+ var v = document.getElementById('video');
+ v.onplaying = function() {
+ this.onplaying = null;
+ this.pause();
+ takeScreenshotDelayed(1000);
+ };
+ v.play();
+ }
+</script>
+<video id="video" width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text-ref.html
new file mode 100644
index 0000000000..e00d422ff7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, it is possible to override cue text with the DOM APIs</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>f o o</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text.html
new file mode 100644
index 0000000000..d2e29e5d7d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, it is possible to override cue text with the DOM APIs</title>
+<link rel="match" href="dom_override_cue_text-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ c.text = 'f o o';
+ updateRendering();
+ }
+ function updateRendering() {
+ var v = document.getElementById('video');
+ v.onplaying = function() {
+ this.onplaying = null;
+ this.pause();
+ takeScreenshotDelayed(1000);
+ };
+ v.play();
+ }
+</script>
+<video id="video" width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused-ref.html
new file mode 100644
index 0000000000..ef2edc968f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue text should be rerendered when overriding them using the DOM APIs while paused</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>f o o</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused.html
new file mode 100644
index 0000000000..728b8bab19
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_cue_text_while_paused.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue text should be rerendered when overriding them using the DOM APIs while paused</title>
+<link rel="match" href="dom_override_cue_text_while_paused-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ c.text = 'f o o';
+ takeScreenshotDelayed(1000);
+ }
+</script>
+<video id="video" width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused-ref.html
new file mode 100644
index 0000000000..60f7bb0cd3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, cue text should be removed when removing them using the DOM APIs while paused</title>
+<script src="/common/reftest-wait.js"></script>
+<style>
+html { overflow: hidden }
+body { margin: 0 }
+</style>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+</video>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused.html
new file mode 100644
index 0000000000..459ceabbf8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/dom_override_remove_cue_while_paused.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue text should be removed when removing them using the DOM APIs while paused</title>
+<link rel="match" href="dom_override_remove_cue_while_paused-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow: hidden }
+body { margin: 0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script>
+ var i = 0;
+ function updateCue() {
+ i++;
+ if (i !== 2) {
+ return;
+ }
+ var t = document.getElementById('track');
+ var c = t.track.cues[0];
+ t.track.removeCue(c);
+ takeScreenshotDelayed(1000);
+ }
+</script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); updateCue();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track id="track" src="support/test.vtt" onload="updateCue();">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority-ref.html
new file mode 100644
index 0000000000..b479029f70
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority-ref.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: Cascade Priority</title>
+<style>
+::cue {
+ color: green;
+}
+::cue {
+ background: green;
+}
+::cue {
+ opacity: 0.5;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority.html
new file mode 100644
index 0000000000..db6822e397
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Cascade Priority</title>
+<link rel="match" href="embedded_style_cascade_priority-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+<style>
+/* Embedded style should take precedence over author style, so the cue color should be green. */
+::cue {
+ color: red;
+}
+</style>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_cascade_priority.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority_layer.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority_layer.html
new file mode 100644
index 0000000000..8d4598fe30
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_cascade_priority_layer.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Cascade Priority</title>
+<link rel="match" href="embedded_style_cascade_priority-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<link rel="help" href="https://drafts.csswg.org/css-cascade-5/#cascade-sort">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/common/reftest-wait.js"></script>
+<style>
+/* Embedded important style should take precedence over author important style
+ regardless of layers, so the cue color should be green. */
+@layer {
+ ::cue {
+ color: red !important;
+ }
+}
+</style>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_cascade_priority_layer.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked-ref.html
new file mode 100644
index 0000000000..1cb9d24c98
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: Imports Blocked</title>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked.html
new file mode 100644
index 0000000000..1ffdf078d1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_imports_blocked.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Imports Blocked</title>
+<link rel="match" href="embedded_style_imports_blocked-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_imports_blocked.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format-ref.html
new file mode 100644
index 0000000000..698ac7bc19
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: Invalid Format</title>
+<style>
+::cue {
+ color: green;
+}
+::cue(v[voice=Voice1])
+{
+ background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==)
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format.html
new file mode 100644
index 0000000000..746816f272
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_invalid_format.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Invalid Format</title>
+<link rel="match" href="embedded_style_invalid_format-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_invalid_format.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries-ref.html
new file mode 100644
index 0000000000..d132b132b4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Media Queries</title>
+<script src="/common/reftest-wait.js"></script>
+<style>iframe {width:100%; height:500px}</style>
+<script>
+ onload = function() {
+ let iframeWindow = document.querySelector('iframe').contentWindow;
+ iframeWindow.requestAnimationFrame(() => {
+ iframeWindow.requestAnimationFrame(() => {
+ setTimeout(function() {
+ takeScreenshot();
+ }, 100);
+ });
+ });
+ };
+</script>
+<iframe src="support/embedded_style_media_queries-iframe-ref.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries.html
new file mode 100644
index 0000000000..010314dd15
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>Embedded Style: Media Queries</title>
+<link rel="match" href="embedded_style_media_queries-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>iframe {width:100%; height:500px}</style>
+<script>
+ onload = function() {
+ let iframeWindow = document.querySelector('iframe').contentWindow;
+ iframeWindow.requestAnimationFrame(() => {
+ iframeWindow.requestAnimationFrame(() => {
+ setTimeout(function() {
+ takeScreenshot();
+ }, 100);
+ });
+ });
+ };
+</script>
+<iframe src="support/embedded_style_media_queries-iframe.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized-ref.html
new file mode 100644
index 0000000000..46c8ad4741
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Media Queries Resize Frame</title>
+<script src="/common/reftest-wait.js"></script>
+<style>iframe {width:100%; height:300px}</style>
+<script>
+ onload = function() {
+ let iframeWindow = document.querySelector('iframe').contentWindow;
+ iframeWindow.requestAnimationFrame(() => {
+ iframeWindow.requestAnimationFrame(() => {
+ setTimeout(function() {
+ takeScreenshot();
+ }, 100);
+ });
+ });
+ };
+</script>
+<iframe src="support/embedded_style_media_queries_resized-iframe-ref.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized.html
new file mode 100644
index 0000000000..703d7367ae
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_media_queries_resized.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>Embedded Style: Media Queries Resize Frame</title>
+<link rel="match" href="embedded_style_media_queries_resized-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>iframe {width:100%; height:500px}</style>
+<script>
+ onload = function() {
+ document.getElementById("form-iframe").style.height = "300px";
+ let iframeWindow = document.querySelector('iframe').contentWindow;
+ iframeWindow.requestAnimationFrame(() => {
+ iframeWindow.requestAnimationFrame(() => {
+ setTimeout(function() {
+ takeScreenshot();
+ }, 100);
+ });
+ });
+ };
+</script>
+<iframe id="form-iframe" src="support/embedded_style_media_queries_resized-iframe.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks-ref.html
new file mode 100644
index 0000000000..4b956da448
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: Multiple Tracks, style only applies to the track it was sourced for</title>
+<style>
+::cue(v[voice=Voice1]) {
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ document.getElementsByTagName('track')[1].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks.html
new file mode 100644
index 0000000000..3c8202761f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_multiple_tracks.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Multiple Tracks, style only applies to the track it was sourced for</title>
+<link rel="match" href="embedded_style_multiple_tracks-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_multiple_tracks1.vtt">
+ <track src="support/embedded_style_multiple_tracks2.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ document.getElementsByTagName('track')[1].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors-ref.html
new file mode 100644
index 0000000000..754eed88b7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: Selectors</title>
+<style>
+::cue {
+ font-size: 11px;
+ background: lime;
+}
+::cue(b) {
+ background: green;
+ color: green;
+}
+::cue(i) {
+ background: green;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors.html
new file mode 100644
index 0000000000..55db5c7302
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_selectors.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: Selectors</title>
+<link rel="match" href="embedded_style_selectors-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_selectors.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls-ref.html
new file mode 100644
index 0000000000..6eca04506e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for Embedded Style: URLs, only allow data URLs</title>
+<style>
+::cue(v[voice=Voice1])
+{
+ background: url(data:image/gif;base64,R0lGODlhEAAQAMQAAORHHOVSKudfOulrSOp3WOyDZu6QdvCchPGolfO0o/XBs/fNwfjZ0frl3/zy7////wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAkAABAALAAAAAAQABAAAAVVICSOZGlCQAosJ6mu7fiyZeKqNKToQGDsM8hBADgUXoGAiqhSvp5QAnQKGIgUhwFUYLCVDFCrKUE1lBavAViFIDlTImbKC5Gm2hB0SlBCBMQiB0UjIQA7)
+}
+::cue(b)
+{
+ background: url("support/invalid.png")
+}
+::cue(i)
+{
+ background: url("support/invalid.png")
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls.html
new file mode 100644
index 0000000000..2faff059d2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/embedded_style_urls.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Embedded Style: URLs, only allow data URLs</title>
+<link rel="match" href="embedded_style_urls-ref.html">
+<link rel="help" href="https://w3c.github.io/webvtt/#obtaining-css-boxes">
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/embedded_style_urls.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition-ref.html
new file mode 100644
index 0000000000..f150531bbd
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue reposition after enabling controls</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ outline: solid;
+ width: 320px;
+ height: 240px;
+ position: relative
+}
+video {
+ position: absolute;
+ width:320px;
+ height:240px;
+}
+.cue {
+ position: absolute;
+ bottom: 50px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+ font-size: 50px;
+}
+</style>
+<video controls>
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+</video>
+<div class="video"><span class="cue"><span>Foo</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition.html
new file mode 100644
index 0000000000..7bfb8d9ff5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/enable_controls_reposition.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue reposition after enabling controls</title>
+<link rel="match" href="enable_controls_reposition-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ font-family: Ahem, sans-serif;
+ font-size: 50px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video autoplay onplaying="this.onplaying = null;
+ this.pause();
+ this.currentTime = 0;
+ setTimeout(function(video){
+ video.controls = true;
+ }, 100, this);
+ takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src=support/foo.vtt>
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely-ref.html
new file mode 100644
index 0000000000..5eb5d73256
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely-ref.html
@@ -0,0 +1,113 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, repositioning of 9 cues that overlap completely</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ width: 180px;
+ height: 180px;
+ outline: solid;
+ position: relative;
+ font-size: 9px
+}
+#cue1 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: -4.5px;
+ color: #000
+}
+#cue2 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: -4.5px;
+ color: #222
+}
+#cue3 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: -13.5px;
+ color: #444
+}
+#cue4 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: 4.5px;
+ color: #666
+}
+#cue5 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: -4.5px;
+ color: #888
+}
+#cue6 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: -13.5px;
+ color: #aaa
+}
+#cue7 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: 4.5px;
+ color: #ccc
+}
+#cue8 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: -13.5px;
+ color: #eee
+}
+#cue9 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: 4.5px;
+ color: green
+}
+.cue {
+ width: 9px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+}
+</style>
+<div class="video">
+ <span class="cue" id="cue1"><span>1</span></span>
+ <span class="cue" id="cue2"><span>2</span></span>
+ <span class="cue" id="cue3"><span>3</span></span>
+ <span class="cue" id="cue4"><span>4</span></span>
+ <span class="cue" id="cue5"><span>5</span></span>
+ <span class="cue" id="cue6"><span>6</span></span>
+ <span class="cue" id="cue7"><span>7</span></span>
+ <span class="cue" id="cue8"><span>8</span></span>
+ <span class="cue" id="cue9"><span>9</span></span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely.html
new file mode 100644
index 0000000000..606ded5095
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, repositioning of 9 cues that overlap completely</title>
+<meta name="timeout" content="long">
+<link rel="match" href="9_cues_overlapping_completely-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+}
+::cue(#cue1) {
+ color: #000
+}
+::cue(#cue2) {
+ color: #222
+}
+::cue(#cue3) {
+ color: #444
+}
+::cue(#cue4) {
+ color: #666
+}
+::cue(#cue5) {
+ color: #888
+}
+::cue(#cue6) {
+ color: #aaa
+}
+::cue(#cue7) {
+ color: #ccc
+}
+::cue(#cue8) {
+ color: #eee
+}
+::cue(#cue9) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="180" height="180" autoplay ontimeupdate="if (this.currentTime >= 1) { this.ontimeupdate = null; this.pause(); takeScreenshot(); }">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/9_cues_overlapping_completely.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp-ref.html
new file mode 100644
index 0000000000..22095bf685
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp-ref.html
@@ -0,0 +1,113 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, repositioning of 9 cues that overlap completely and all cues have the same timestamp</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ width: 180px;
+ height: 180px;
+ outline: solid;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: -4.5px;
+ color: #000
+}
+#cue2 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: -4.5px;
+ color: #222
+}
+#cue3 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: -13.5px;
+ color: #444
+}
+#cue4 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -4.5px;
+ margin-left: 4.5px;
+ color: #666
+}
+#cue5 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: -4.5px;
+ color: #888
+}
+#cue6 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: -13.5px;
+ color: #aaa
+}
+#cue7 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: -13.5px;
+ margin-left: 4.5px;
+ color: #ccc
+}
+#cue8 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: -13.5px;
+ color: #eee
+}
+#cue9 {
+ position: absolute;
+ top: 50%;
+ left: 50%;
+ right: 0;
+ margin-top: 4.5px;
+ margin-left: 4.5px;
+ color: green
+}
+.cue {
+ width: 9px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+}
+</style>
+<div class="video">
+ <span class="cue" id="cue1"><span>1</span></span>
+ <span class="cue" id="cue2"><span>2</span></span>
+ <span class="cue" id="cue3"><span>3</span></span>
+ <span class="cue" id="cue4"><span>4</span></span>
+ <span class="cue" id="cue5"><span>5</span></span>
+ <span class="cue" id="cue6"><span>6</span></span>
+ <span class="cue" id="cue7"><span>7</span></span>
+ <span class="cue" id="cue8"><span>8</span></span>
+ <span class="cue" id="cue9"><span>9</span></span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp.html
new file mode 100644
index 0000000000..00d4eccfd9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/9_cues_overlapping_completely_all_cues_have_same_timestamp.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, repositioning of 9 cues that overlap completely and all cues have the same timestamp</title>
+<link rel="match" href="9_cues_overlapping_completely_all_cues_have_same_timestamp-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+}
+::cue(#cue1) {
+ color: #000
+}
+::cue(#cue2) {
+ color: #222
+}
+::cue(#cue3) {
+ color: #444
+}
+::cue(#cue4) {
+ color: #666
+}
+::cue(#cue5) {
+ color: #888
+}
+::cue(#cue6) {
+ color: #aaa
+}
+::cue(#cue7) {
+ color: #ccc
+}
+::cue(#cue8) {
+ color: #eee
+}
+::cue(#cue9) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="180" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 1; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/9_cues_overlapping_completely_all_cues_have_same_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles-ref.html
new file mode 100644
index 0000000000..b4b242795b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, when media cannot be played (404 error), subtitles are not displayed</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+</style>
+<div class="video"></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles.html
new file mode 100644
index 0000000000..7e29894cae
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_404_omit_subtitles.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<!-- no reftest-wait -->
+<title>WebVTT rendering, when media cannot be played (404 error), subtitles are not displayed</title>
+<link rel="match" href="media_404_omit_subtitles-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<!--
+The subtitles are not expected to render because the "show poster flag"
+is set, so when the track loads it will *not* run "time marches on".
+-->
+<video width="320" height="180" autoplay>
+ <source src="/common/text-plain.txt?pipe=status(404)">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html
new file mode 100644
index 0000000000..2b7a1ed2bf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, when media height is 19 or less, font size should be smaller than when it is 20 and above</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 19px;
+ outline: solid;
+ position: relative;
+ font-size: 0.95px
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19.html
new file mode 100644
index 0000000000..fb7662b66c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/media_height_19.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, when media height is 19 or less, font size should be smaller than when it is 20 and above</title>
+<link rel="match" href="media_height_19-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family:Ahem, sans-serif;
+ color:green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="19" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements-ref.html
new file mode 100644
index 0000000000..5664a4de7b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en" class="reftest-wait">
+<style>
+video { width:560px; height:320px; }
+</style>
+<video>
+<source src="/media/white.webm" type="video/webm">
+<source src="/media/white.mp4" type="video/mp4">
+<track label="English subtitles" kind="subtitles" srclang="en" src="support/test.vtt" default>
+</video>
+<script>
+const v = document.querySelector('video');
+v.onseeked = () => { document.documentElement.classList.remove('reftest-wait'); };
+v.currentTime = 3;
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements.html
new file mode 100644
index 0000000000..20cf81ace2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/non-standard-pseudo-elements.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html lang="en" class="reftest-wait">
+<title>position:fixed on non-standard ::-webkit-media-text-track-display should not affect</title>
+<link rel="match" href="non-standard-pseudo-elements-ref.html">
+<style>
+video { width:560px; height:320px; }
+video::-webkit-media-text-track-display {
+ position: fixed !important;
+}
+</style>
+<video>
+<source src="/media/white.webm" type="video/webm">
+<source src="/media/white.mp4" type="video/mp4">
+<track label="English subtitles" kind="subtitles" srclang="en" src="support/test.vtt" default>
+</video>
+<script>
+const v = document.querySelector('video');
+v.onseeked = () => { document.documentElement.classList.remove('reftest-wait'); };
+v.currentTime = 3;
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote-ref.html
new file mode 100644
index 0000000000..81c546e026
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, single quote should not be levitated</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>'</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote.html
new file mode 100644
index 0000000000..b012063501
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/single_quote.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, single quote should not be levitated</title>
+<link rel="match" href="single_quote-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/single_quote.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90-ref.html
new file mode 100644
index 0000000000..de39a8b7ad
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, size:90% == size:100% when text does not need to wrap</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90.html
new file mode 100644
index 0000000000..b535168c5d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_90.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, size:99% == size:100% when text does not need to wrap</title>
+<link rel="match" href="size_90-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/size_90.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99-ref.html
new file mode 100644
index 0000000000..7a6755a08d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, size:99% == size:100% when text does not need to wrap</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video><span class=cue><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99.html
new file mode 100644
index 0000000000..60e65bbfa4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/size_99.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, size:99% == size:100% when text does not need to wrap</title>
+<link rel="match" href="size_99-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/size_99.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely.vtt
new file mode 100644
index 0000000000..3f4250d8b1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely.vtt
@@ -0,0 +1,37 @@
+WEBVTT
+
+cue1
+00:00:00.001 --> 00:00:05.000 position:50% size:5% line:50%
+1
+
+cue2
+00:00:00.002 --> 00:00:05.000 position:50% size:5% line:50%
+2
+
+cue3
+00:00:00.003 --> 00:00:05.000 position:50% size:5% line:50%
+3
+
+cue4
+00:00:00.004 --> 00:00:05.000 position:50% size:5% line:50%
+4
+
+cue5
+00:00:00.005 --> 00:00:05.000 position:50% size:5% line:50%
+5
+
+cue6
+00:00:00.006 --> 00:00:05.000 position:50% size:5% line:50%
+6
+
+cue7
+00:00:00.007 --> 00:00:05.000 position:50% size:5% line:50%
+7
+
+cue8
+00:00:00.008 --> 00:00:05.000 position:50% size:5% line:50%
+8
+
+cue9
+00:00:00.009 --> 00:00:05.000 position:50% size:5% line:50%
+9
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely_all_cues_have_same_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely_all_cues_have_same_timestamp.vtt
new file mode 100644
index 0000000000..d5019e0ed2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/9_cues_overlapping_completely_all_cues_have_same_timestamp.vtt
@@ -0,0 +1,37 @@
+WEBVTT
+
+cue1
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+1
+
+cue2
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+2
+
+cue3
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+3
+
+cue4
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+4
+
+cue5
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+5
+
+cue6
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+6
+
+cue7
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+7
+
+cue8
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+8
+
+cue9
+00:00:00.000 --> 00:00:05.000 position:50% size:5% line:50%
+9
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/single_quote.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/single_quote.vtt
new file mode 100644
index 0000000000..5e7eefd262
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/single_quote.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+'
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_90.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_90.vtt
new file mode 100644
index 0000000000..2ab4fa179f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_90.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:90%
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_99.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_99.vtt
new file mode 100644
index 0000000000..cd14574f09
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/size_99.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:99%
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/test.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/test.vtt
new file mode 100644
index 0000000000..ab71ec5984
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/evil/support/test.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards-ref.html
new file mode 100644
index 0000000000..b3819320bf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line:-2, size:50%, wrapped cue should grow upwards</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 9px;
+ left: 80px;
+ right: 0;
+ width: 160px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that will line break</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards.html
new file mode 100644
index 0000000000..85d7d6f81e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_-2_wrapped_cue_grow_upwards.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line:-2, size:50%, wrapped cue should grow upwards</title>
+<link rel="match" href="line_-2_wrapped_cue_grow_upwards-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_-2_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top-ref.html
new file mode 100644
index 0000000000..85f2a95fa8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line:0 should be top line</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top.html
new file mode 100644
index 0000000000..c780a223e7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_0_is_top.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line:0 should be top line</title>
+<link rel="match" href="line_0_is_top-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_0.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards-ref.html
new file mode 100644
index 0000000000..44f2c31785
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line:1, size:50%, wrapped cue should grow downwards</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 9px;
+ left: 80px;
+ right: 0;
+ width: 160px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that will line break</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards.html
new file mode 100644
index 0000000000..0b1c25e6b1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_1_wrapped_cue_grow_downwards.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line:1, size:50%, wrapped cue should grow downwards</title>
+<link rel="match" href="line_1_wrapped_cue_grow_downwards-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_1_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent-ref.html
new file mode 100644
index 0000000000..098679f7be
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line:50% should be vertically centered</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 50%;
+ left: 0;
+ right: 0;
+ margin-top: -4.5px;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent.html
new file mode 100644
index 0000000000..b433708ae3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line:50% should be vertically centered</title>
+<link rel="match" href="line_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap-ref.html
new file mode 100644
index 0000000000..cb39fde53e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line integer and percent mixed with overlap</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 81px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+#cue2 {
+ position: absolute;
+ top: 90px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span id="cue1" class="cue"><span>This is a test subtitle</span></span><span id="cue2" class="cue"><span>This is another test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap.html
new file mode 100644
index 0000000000..3106f2013d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line integer and percent mixed with overlap</title>
+<link rel="match" href="line_integer_and_percent_mixed_overlap-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_integer_and_percent_overlap.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up-ref.html
new file mode 100644
index 0000000000..13247ea8bb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line integer and percent mixed with overlap move up</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 90px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+#cue2 {
+ position: absolute;
+ top: 81px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span id="cue1" class="cue"><span>This is a test subtitle</span></span><span id="cue2" class="cue"><span>This is another test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up.html
new file mode 100644
index 0000000000..1f9792f6e0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_integer_and_percent_mixed_overlap_move_up.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line integer and percent mixed with overlap move up</title>
+<link rel="match" href="line_integer_and_percent_mixed_overlap_move_up-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_integer_and_percent_overlap_move_up.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap-ref.html
new file mode 100644
index 0000000000..6f96ab986e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line percent and integer mixed with overlap</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 76.95px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+#cue2 {
+ position: absolute;
+ top: 90px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span id="cue1" class="cue"><span>This is a test subtitle</span></span><span id="cue2" class="cue"><span>This is another test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap.html
new file mode 100644
index 0000000000..059a7ccd60
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line percent and integer mixed with overlap</title>
+<link rel="match" href="line_percent_and_integer_mixed_overlap-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_percent_and_integer_overlap.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up-ref.html
new file mode 100644
index 0000000000..8f14e15e92
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, line percent and integer mixed with overlap move up</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+#cue1 {
+ position: absolute;
+ top: 94.05px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+#cue2 {
+ position: absolute;
+ top: 81px;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span id="cue1" class="cue"><span>This is a test subtitle</span></span><span id="cue2" class="cue"><span>This is another test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up.html
new file mode 100644
index 0000000000..08016057f4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/line_percent_and_integer_mixed_overlap_move_up.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, line percent and integer mixed with overlap move up</title>
+<link rel="match" href="line_percent_and_integer_mixed_overlap_move_up-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/line_percent_and_integer_overlap_move_up.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media/background.gif b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media/background.gif
new file mode 100644
index 0000000000..b3185c409c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media/background.gif
Binary files differ
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls-ref.html
new file mode 100644
index 0000000000..ed5b3f8826
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, the subtitles is not covered by or covering the controls</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ position: absolute;
+ width: 320px;
+ height: 400px;
+ outline: solid;
+ font-size: 20px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+ padding-bottom: 40px;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
+<video width="320" height="400" autoplay controls onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track>
+</video>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls.html
new file mode 100644
index 0000000000..349a121d9b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_height400_with_controls.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, the subtitles is not covered by or covering the controls</title>
+<link rel="match" href="media_height400_with_controls-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="400" autoplay controls onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls-ref.html
new file mode 100644
index 0000000000..58b32dd659
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls-ref.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, the subtitles are moved up to correct position when controls are visible</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ position: absolute;
+ width: 320px;
+ height: 180px;
+ outline: solid;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+ padding-bottom: 9px;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
+<video width="320" height="180" autoplay controls onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track>
+</video>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls.html
new file mode 100644
index 0000000000..dda72d16a6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/media_with_controls.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, the subtitles are moved up to correct position when controls are visible</title>
+<link rel="match" href="media_with_controls-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay controls onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-1.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-1.html
new file mode 100644
index 0000000000..87f3834e3d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-1.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<html>
+<title>WebVTT rendering, cue position after navigation</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ font-family: Ahem, sans-serif;
+ font-size: 50px;
+ color: green;
+}
+</style>
+<video autoplay onplaying="this.onplaying = null;
+ this.pause();
+ this.currentTime = 0;
+ ">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src=support/foo.vtt>
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref-1.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref-1.html
new file mode 100644
index 0000000000..5ee98043ec
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref-1.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue position after navigation</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.video {
+ display: inline-block;
+ outline: solid;
+ width: 320px;
+ height: 240px;
+ position: relative;
+ font-size: 50px;
+}
+video {
+ position: absolute;
+ width:320px;
+ height:240px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<video>
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+</video>
+<div class="video"><span class="cue"><span>Foo</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref.html
new file mode 100644
index 0000000000..b973a71c0d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue position after navigation</title>
+<style>iframe {width:100%; height:500px}</style>
+<iframe src="navigate_cue_position-ref-1.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position.html
new file mode 100644
index 0000000000..e176ef0099
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue position after navigation</title>
+<link rel="match" href="navigate_cue_position-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/utils.js"></script>
+<style>iframe {width:100%; height:500px}</style>
+<script>
+var uuid = token();
+onload = function() {
+ var frame = document.getElementsByTagName("iframe")[0].contentWindow;
+ if (sessionStorage[uuid]) {
+ document.body.appendChild(document.createTextNode('FAIL (page reloaded after navigation)'));
+ delete sessionStorage[uuid]
+ takeScreenshotDelayed(100);
+ } else {
+ setTimeout(function() {
+ frame.location.assign('data:text/html,<body onload="setTimeout(function(){history.back()}, 100); sessionStorage[\'' + uuid + '\'] = \'true\';">x');
+ setTimeout(function() {
+ delete sessionStorage[uuid];
+ takeScreenshot();
+ }, 500);
+ }, 100);
+ }
+}
+</script>
+<iframe src="navigate_cue_position-1.html"></iframe>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue-ref.html
new file mode 100644
index 0000000000..47bb32d8c7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, one line cue and cue that wraps - both should be fully visible</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 15%;
+ right: 0;
+ width: 70%;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This test subtitle wraps and should be visible<br>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue.html
new file mode 100644
index 0000000000..4f95ebfa7c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/one_line_cue_plus_wrapped_cue.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, one line cue and cue that wraps - both should be fully visible</title>
+<link rel="match" href="one_line_cue_plus_wrapped_cue-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/one_line_cue_plus_wrapped_cue.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic-ref.html
new file mode 100644
index 0000000000..e73018cb9e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, default</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic.html
new file mode 100644
index 0000000000..54a3f8bbf8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/basic.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, default</title>
+<link rel="match" href="basic-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/basic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent-ref.html
new file mode 100644
index 0000000000..8e87920daa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, regionanchor x 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: -50%;
+ right: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent.html
new file mode 100644
index 0000000000..41fa9b3774
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_x_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, regionanchor x 50%</title>
+<link rel="match" href="regionanchor_x_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/regionanchor_x_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent-ref.html
new file mode 100644
index 0000000000..db1031093c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent-ref.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, regionanchor y 50%</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style> \ No newline at end of file
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent.html
new file mode 100644
index 0000000000..c1c08a7ea8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/regionanchor_y_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, regionanchor y 50%</title>
+<link rel="match" href="regionanchor_y_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/regionanchor_y_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up-ref.html
new file mode 100644
index 0000000000..378df3d2ab
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, scroll up</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a second test subtitle<br/>This is a third test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up.html
new file mode 100644
index 0000000000..16af1bc516
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/scroll_up.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, scroll up</title>
+<link rel="match" href="scroll_up-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshotDelayed(3000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/scroll_up.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left-ref.html
new file mode 100644
index 0000000000..8dea283bc9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, single line top left</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: left
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left.html
new file mode 100644
index 0000000000..873416cd0e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/single_line_top_left.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, single line top left</title>
+<link rel="match" href="single_line_top_left-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/single_line_top_left.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/basic.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/basic.vtt
new file mode 100644
index 0000000000..ed97827479
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/basic.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+REGION
+id:1
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_x_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_x_50_percent.vtt
new file mode 100644
index 0000000000..eafea7fff9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_x_50_percent.vtt
@@ -0,0 +1,8 @@
+WEBVTT
+
+REGION
+id:1
+regionanchor:50%,100%
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_y_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_y_50_percent.vtt
new file mode 100644
index 0000000000..d51ad26769
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/regionanchor_y_50_percent.vtt
@@ -0,0 +1,8 @@
+WEBVTT
+
+REGION
+id:1
+regionanchor:0%,50%
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/scroll_up.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/scroll_up.vtt
new file mode 100644
index 0000000000..f70a79a654
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/scroll_up.vtt
@@ -0,0 +1,15 @@
+WEBVTT
+
+REGION
+id:1
+lines:2
+scroll:up
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a first test subtitle
+
+00:00:01.000 --> 00:00:05.000 region:1
+This is a second test subtitle
+
+00:00:01.000 --> 00:00:05.000 region:1
+This is a third test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/single_line_top_left.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/single_line_top_left.vtt
new file mode 100644
index 0000000000..efe9d8793e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/single_line_top_left.vtt
@@ -0,0 +1,10 @@
+WEBVTT
+
+REGION
+id:1
+viewportanchor:0%,0%
+regionanchor:0%,0%
+lines:1
+
+00:00:00.000 --> 00:00:05.000 region:1 align:left
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_x_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_x_50_percent.vtt
new file mode 100644
index 0000000000..afd9876c06
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_x_50_percent.vtt
@@ -0,0 +1,8 @@
+WEBVTT
+
+REGION
+id:1
+viewportanchor:50%,100%
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_y_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_y_50_percent.vtt
new file mode 100644
index 0000000000..62e8a79687
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/viewportanchor_y_50_percent.vtt
@@ -0,0 +1,8 @@
+WEBVTT
+
+REGION
+id:1
+viewportanchor:0%,50%
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/width_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/width_50_percent.vtt
new file mode 100644
index 0000000000..9fce99b03b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/support/width_50_percent.vtt
@@ -0,0 +1,8 @@
+WEBVTT
+
+REGION
+id:1
+width:50%
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent-ref.html
new file mode 100644
index 0000000000..79f8e089ca
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, viewportanchor x 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 50%;
+ right: -50%;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent.html
new file mode 100644
index 0000000000..01f37fbf0d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_x_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, viewportanchor x 50%</title>
+<link rel="match" href="viewportanchor_x_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/viewportanchor_x_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent-ref.html
new file mode 100644
index 0000000000..238b4af799
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, viewportanchor y 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 50%;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent.html
new file mode 100644
index 0000000000..504f4a99d0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/viewportanchor_y_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, viewportanchor y 50%</title>
+<link rel="match" href="viewportanchor_y_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/viewportanchor_y_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent-ref.html
new file mode 100644
index 0000000000..d27d698f79
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering regions, width 50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent.html
new file mode 100644
index 0000000000..ba550344f1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/regions/width_50_percent.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering regions, width 50%</title>
+<link rel="match" href="width_50_percent-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/width_50_percent.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint-ref.html
new file mode 100644
index 0000000000..49f385b079
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint-ref.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue should repaint after hiding a covering abspos box</title>
+<style>
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 240px;
+ position: relative;
+ font-size: 50px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<p>You should see the word 'PASS' below.</p>
+<div class="video"><span class="cue"><span>PASS</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint.html
new file mode 100644
index 0000000000..669880b976
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/repaint.html
@@ -0,0 +1,51 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue should repaint after hiding a covering abspos box</title>
+<link rel="match" href="repaint-ref.html">
+<style>
+#wrapper {
+ position: relative;
+}
+#cover {
+ position: absolute;
+ left: 0px;
+ top: 180px;
+ width: 320px;
+ height: 60px;
+ background-color: gray;
+}
+video {
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ font-size: 50px;
+ color: green;
+}
+</style>
+<p>You should see the word 'PASS' below.</p>
+<script src="/common/reftest-wait.js"></script>
+<div id=wrapper>
+ <video>
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <div id=cover></div>
+</div>
+<script>
+var v = document.querySelector('video');
+var c = document.getElementById('cover');
+var t = v.addTextTrack('subtitles');
+t.mode = "showing";
+t.addCue(new VTTCue(0, 100, 'PASS'));
+v.onplaying = function() {
+ setTimeout(function() {
+ v.pause();
+ setTimeout(function() {
+ c.style.visibility = 'hidden';
+ setTimeout(takeScreenshot, 100);
+ }, 100);
+ }, 100);
+};
+v.play();
+</script>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties-ref.html
new file mode 100644
index 0000000000..669342072a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue-region, font properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.region-cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.region-cue > span {
+ font: italic small-caps bold 9px/18px sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="region-cue"><span>This is a test subtitle</span></span><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties.html
new file mode 100644
index 0000000000..7ba2796aa9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/font_properties.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue-region, font properties</title>
+<link rel="match" href="font_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue-region {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif !important;
+}
+::cue {
+ font-family: Ahem, sans-serif;
+ color: white;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/support/test.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/support/test.vtt
new file mode 100644
index 0000000000..5ead6782ec
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region/support/test.vtt
@@ -0,0 +1,13 @@
+WEBVTT
+
+REGION
+id:1
+lines:1
+regionanchor:0%,0%
+viewportanchor:0%,0%
+
+00:00:00.000 --> 00:00:05.000
+This is a test subtitle
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties-ref.html
new file mode 100644
index 0000000000..6c027c28a2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue-region(), font properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.region1-cue {
+ position: absolute;
+ top: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.region1-cue > span {
+ font: italic small-caps bold 9px/18px sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.region2-cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+}
+.region2-cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="region1-cue"><span>This is a test subtitle</span></span><span class="region2-cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties.html
new file mode 100644
index 0000000000..dd01d74602
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/font_properties.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue-region(), font properties</title>
+<link rel="match" href="font_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue-region(#\31) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif !important;
+}
+::cue-region(#\32) {
+ font-family: Ahem, sans-serif;
+ color: white;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/support/test.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/support/test.vtt
new file mode 100644
index 0000000000..7edfaf7262
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue-region_function/support/test.vtt
@@ -0,0 +1,17 @@
+WEBVTT
+
+REGION
+id:1
+lines:1
+regionanchor:0%,0%
+viewportanchor:0%,0%
+
+REGION
+id:2
+lines:1
+
+00:00:00.000 --> 00:00:05.000 region:1
+This is a test subtitle
+
+00:00:00.000 --> 00:00:05.000 region:2
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties-ref.html
new file mode 100644
index 0000000000..c38d513a42
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, background properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties.html
new file mode 100644
index 0000000000..7c1757dd0f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_properties.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, background properties</title>
+<link rel="match" href="background_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ background-color: #0f0;
+ background-image: url('../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand-ref.html
new file mode 100644
index 0000000000..b6e8692dc9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, background shorthand</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand.html
new file mode 100644
index 0000000000..d8c15b1982
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, background shorthand</title>
+<link rel="match" href="background_shorthand-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url-ref.html
new file mode 100644
index 0000000000..f630d7caad
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, background shorthand, background image URL with relative path from CSS file</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url.html
new file mode 100644
index 0000000000..2397fec005
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/background_shorthand_css_relative_url.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, background shorthand, background image URL with relative path from CSS file</title>
+<link rel="match" href="background_shorthand_css_relative_url-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex-ref.html
new file mode 100644
index 0000000000..7e37d8f787
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, color: #60ff60</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: #60ff60;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex.html
new file mode 100644
index 0000000000..a759e718f8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hex.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, color: #60ff60</title>
+<link rel="match" href="color_hex-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: #60ff60;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla-ref.html
new file mode 100644
index 0000000000..377a8ebe82
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, color: hsla()</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: hsla(100,100%,50%,0.5);
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla.html
new file mode 100644
index 0000000000..2287c703ef
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_hsla.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, color: hsla()</title>
+<link rel="match" href="color_hsla-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: hsla(100,100%,50%,0.5);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba-ref.html
new file mode 100644
index 0000000000..461e743da5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, color: rgba()</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: rgba(128,255,128,0.5);
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba.html
new file mode 100644
index 0000000000..6848b8d75b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/color_rgba.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, color: rgba()</title>
+<link rel="match" href="color_rgba-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: rgba(128,255,128,0.5);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon-ref.html
new file mode 100644
index 0000000000..cf00fe891d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, :cue (single colon) should not be supported</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon.html
new file mode 100644
index 0000000000..d27ac3e3c6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/cue_selector_single_colon.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, :cue (single colon) should not be supported</title>
+<link rel="match" href="cue_selector_single_colon-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+:cue {
+ background: red;
+ color: yellow
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties-ref.html
new file mode 100644
index 0000000000..c584cf1f03
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties.html
new file mode 100644
index 0000000000..cafc222e4d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, font properties</title>
+<link rel="match" href="font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand-ref.html
new file mode 100644
index 0000000000..c078724851
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand.html
new file mode 100644
index 0000000000..78e2800fa3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, font shorthand</title>
+<link rel="match" href="font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: italic small-caps bold 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element-ref.html
new file mode 100644
index 0000000000..82cebf4606
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element-ref.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, css properties with value inherit should inherit from media element</title>
+<style>
+.video {
+ position: absolute;
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ color: #f0f;
+ white-space: pre-wrap;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-decoration: overline underline line-through;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+ font-size: 9px;
+}
+.videoWhite {
+ position: absolute;
+ top: 0;
+ left: 40px;
+ width: 240px;
+ height: 180px;;
+ background: #fff;
+ z-index: 1;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ text-align: center;
+ outline: inherit;
+ text-shadow: inherit;
+ text-decoration: inherit;
+ outline-bottom: none;
+ z-index: 2
+}
+.cue > span {
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ text-decoration: inherit;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><div class="videoWhite"></div><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element.html
new file mode 100644
index 0000000000..0b7bcf1c56
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/inherit_values_from_media_element.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, css properties with value inherit should inherit from media element</title>
+<link rel="match" href="inherit_values_from_media_element-ref.html">
+<style>
+video {
+ color: #f0f;
+ white-space: pre-wrap;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-decoration: overline underline line-through;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+}
+::cue {
+ white-space: inherit;
+ font: inherit;
+ color: inherit;
+ text-decoration: inherit;
+ text-shadow: inherit;
+ background: inherit;
+ outline: inherit;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties-ref.html
new file mode 100644
index 0000000000..c436b0a72f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, outline properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties.html
new file mode 100644
index 0000000000..f4d4eed5f8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, outline properties</title>
+<link rel="match" href="outline_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand-ref.html
new file mode 100644
index 0000000000..5ec6727ea2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, outline shorthand</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand.html
new file mode 100644
index 0000000000..e16c083e11
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/outline_shorthand.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, outline shorthand</title>
+<link rel="match" href="outline_shorthand-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..594d5b29b3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: white;
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through.html
new file mode 100644
index 0000000000..9a4179b418
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, text-decoration: line-through</title>
+<link rel="match" href="text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline-ref.html
new file mode 100644
index 0000000000..bb18854b8a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, text-decoration: overline</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: white;
+ text-decoration: overline;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline.html
new file mode 100644
index 0000000000..be7056c138
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, text-decoration: overline</title>
+<link rel="match" href="text-decoration_overline-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ text-decoration: overline;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through-ref.html
new file mode 100644
index 0000000000..85b2067559
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, text-decoration: overline underline line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: white;
+ text-decoration: overline underline line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through.html
new file mode 100644
index 0000000000..47f1999fc1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_overline_underline_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, text-decoration: overline underline line-through</title>
+<link rel="match" href="text-decoration_overline_underline_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ text-decoration: overline underline line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline-ref.html
new file mode 100644
index 0000000000..4a5247233a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, text-decoration: underline</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: white;
+ text-decoration: underline;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline.html
new file mode 100644
index 0000000000..67d920cefa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-decoration_underline.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, text-decoration: underline</title>
+<link rel="match" href="text-decoration_underline-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ text-decoration: underline;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow-ref.html
new file mode 100644
index 0000000000..72e6a15ca3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: white;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow.html
new file mode 100644
index 0000000000..fbd4022a38
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, text-shadow</title>
+<link rel="match" href="text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position-ref.html
new file mode 100644
index 0000000000..8e33ca41a4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+ <meta charset="UTF-8">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ right: 0;
+ text-align: center;
+ unicode-bidi: -webkit-plaintext;
+ unicode-bidi: plaintext;
+ direction: ltr;
+ writing-mode: vertical-rl;
+ -webkit-writing-mode: vertical-rl;
+}
+.cue > span {
+ -webkit-ruby-position: after;
+ ruby-position: under;
+ ruby-position: left;
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span><ruby></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position.html
new file mode 100644
index 0000000000..2a59440893
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_ruby-position.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, vertical cue with ruby position left</title>
+<link rel="match" href="vertical_ruby-position-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ ruby-position: left;
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/bidi_vertical_rl-oneline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright-ref.html
new file mode 100644
index 0000000000..9283f049c2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+ <meta charset="UTF-8">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ text-align: center;
+ unicode-bidi: -webkit-plaintext;
+ unicode-bidi: plaintext;
+ direction: ltr;
+ writing-mode: vertical-lr;
+ -webkit-writing-mode: vertical-lr;
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+.combine {
+ -webkit-text-combine: horizontal;
+ text-combine-upright: all;
+}
+</style>
+<div class="video"><span class="cue"><span>平成<span class="combine">20</span>年4月<span class="combine">16</span>日に</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright.html
new file mode 100644
index 0000000000..56899c5a10
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/vertical_text-combine-upright.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, vertical cue with text-combine-upright digits</title>
+<link rel="match" href="vertical_text-combine-upright-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ text-combine-upright: digits;
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/bidi_text-combine-upright.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..6c28a4f792
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>foo bar baz</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped.html
new file mode 100644
index 0000000000..3241820a6b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: normal (cue that wraps)</title>
+<link rel="match" href="white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/foo_space_space_bar_LF_baz.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped-ref.html
new file mode 100644
index 0000000000..b6364cab1a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: nowrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped.html
new file mode 100644
index 0000000000..db78752ef1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_nowrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: nowrap (cue that wraps)</title>
+<link rel="match" href="white-space_nowrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long_size_20.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..45ee7f85dc
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A<br> A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..c06e0543b9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long_size_20.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-ref.html
new file mode 100644
index 0000000000..075b762bd0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: pre</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..06313b9c71
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ font-family: sans-serif;
+ text-align: center;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A <br> A <br>A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..68bfee0706
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre.html
new file mode 100644
index 0000000000..f4dda8f9a8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: pre</title>
+<link rel="match" href="white-space_pre-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..f568217a14
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue, white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ font-family: sans-serif;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped.html
new file mode 100644
index 0000000000..1c82c62158
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue/white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue, white-space: pre (cue that wraps)</title>
+<link rel="match" href="white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box-ref.html
new file mode 100644
index 0000000000..04ce82af37
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(* *) should match nothing (since the background box is anonymous)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box.html
new file mode 100644
index 0000000000..3cbf2d193d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_box.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(* *) should match nothing (since the background box is anonymous)</title>
+<link rel="match" href="background_box-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(* *) {
+ background:red;
+ color:yellow
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties-ref.html
new file mode 100644
index 0000000000..e85da9c268
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), background properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties.html
new file mode 100644
index 0000000000..5c0dae4d41
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_properties.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), background properties</title>
+<link rel="match" href="background_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ background-color: #0f0;
+ background-image: url('../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand-ref.html
new file mode 100644
index 0000000000..85a65c9636
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), background shorthand</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand.html
new file mode 100644
index 0000000000..da6e5c5541
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), background shorthand</title>
+<link rel="match" href="background_shorthand-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url-ref.html
new file mode 100644
index 0000000000..9f203dfe85
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), background shorthand, background image URL with relative path from CSS file</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ font-size: 9px;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url.html
new file mode 100644
index 0000000000..10777f0e32
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/background_shorthand_css_relative_url.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), background shorthand, background image URL with relative path from CSS file</title>
+<link rel="match" href="background_shorthand_css_relative_url-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp-ref.html
new file mode 100644
index 0000000000..12ff3e16b8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object animation with timestamp, ::cue(b:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp.html
new file mode 100644
index 0000000000..8ba96727f8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_animation_with_timestamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object animation with timestamp, ::cue(b:past) selector</title>
+<link rel="match" href="bold_animation_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b:past) {
+ -o-animation: test 9s steps(2, start);
+ animation: test 9s steps(2, start);
+}
+@-o-keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+@keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties-ref.html
new file mode 100644
index 0000000000..53c778e912
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), background properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties.html
new file mode 100644
index 0000000000..f2252d16ce
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), background properties</title>
+<link rel="match" href="bold_background_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ background-color: #0f0;
+ background-image: url('../../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: black;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand-ref.html
new file mode 100644
index 0000000000..7d973a56c9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), background shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand.html
new file mode 100644
index 0000000000..7c718d7cbd
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_background_shorthand.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), background shorthand</title>
+<link rel="match" href="bold_background_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color-ref.html
new file mode 100644
index 0000000000..35ed895546
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), color: #0000ff</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ color: #0000ff;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color.html
new file mode 100644
index 0000000000..66fe3f2f88
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_color.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), color: #0000ff</title>
+<link rel="match" href="bold_color-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ color: #0000ff;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties-ref.html
new file mode 100644
index 0000000000..74e8acc0b6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ font: italic small-caps normal 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties.html
new file mode 100644
index 0000000000..5b241c662f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), font properties</title>
+<link rel="match" href="bold_font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: normal;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand-ref.html
new file mode 100644
index 0000000000..ad450735b1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ font: normal small-caps normal 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand.html
new file mode 100644
index 0000000000..eb0e4560a9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), font shorthand</title>
+<link rel="match" href="bold_font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font: normal small-caps normal 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace-ref.html
new file mode 100644
index 0000000000..dba8e3d37f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|b) should match</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.green {
+ font-weight: bold;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace.html
new file mode 100644
index 0000000000..93b6e1b286
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_namespace.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|b) should match</title>
+<link rel="match" href="bold_namespace-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ color: green;
+}
+::cue(*|b) {
+ color: red
+}
+::cue(|b) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties-ref.html
new file mode 100644
index 0000000000..67f873c424
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), outline properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties.html
new file mode 100644
index 0000000000..39a2fe57c8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_properties.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), outline properties</title>
+<link rel="match" href="bold_outline_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand-ref.html
new file mode 100644
index 0000000000..ebb9258299
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), outline shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand.html
new file mode 100644
index 0000000000..163e5f9167
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_outline_shorthand.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), outline shorthand</title>
+<link rel="match" href="bold_outline_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..eb06125634
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through.html
new file mode 100644
index 0000000000..e3045d5b25
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), text-decoration: line-through</title>
+<link rel="match" href="bold_text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow-ref.html
new file mode 100644
index 0000000000..5cd5f89858
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(b), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > b {
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow.html
new file mode 100644
index 0000000000..d5b32a63d7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(b), text-shadow</title>
+<link rel="match" href="bold_text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future-ref.html
new file mode 100644
index 0000000000..425754ea8e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object transition with timestamp, ::cue(b:future) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-weight: bold;
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future.html
new file mode 100644
index 0000000000..6dae921e6d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_future.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object transition with timestamp, ::cue(b:future) selector</title>
+<link rel="match" href="bold_timestamp_future-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b:future) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_with_2_timestamps.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past-ref.html
new file mode 100644
index 0000000000..7cca2b42b1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object transition with timestamp, ::cue(b:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-weight: bold;
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past.html
new file mode 100644
index 0000000000..b43d786dd7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_timestamp_past.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object transition with timestamp, ::cue(b:past) selector</title>
+<link rel="match" href="bold_timestamp_past-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp-ref.html
new file mode 100644
index 0000000000..a958d8f787
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object transition with timestamp, ::cue(b:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp.html
new file mode 100644
index 0000000000..d83f85ca38
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_transition_with_timestamp.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object transition with timestamp, ::cue(b:past) selector</title>
+<link rel="match" href="bold_transition_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ -o-transition: color 9s steps(2, start);
+ transition: color 9s steps(2, start);
+}
+::cue(b:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..9b682b2546
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object, ::cue(b), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-weight: bold;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped.html
new file mode 100644
index 0000000000..66869fa009
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object, ::cue(b), white-space: normal (cue that wraps)</title>
+<link rel="match" href="bold_white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap-ref.html
new file mode 100644
index 0000000000..949a72e3e7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object, ::cue(b), white-space: nowrap (cue does not wrap)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-weight: bold;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap.html
new file mode 100644
index 0000000000..636ecd467b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_nowrap.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object, ::cue(b), white-space: nowrap (cue does not wrap)</title>
+<link rel="match" href="bold_white-space_nowrap-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..951b9c932c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object, ::cue(b), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-weight: bold;
+ white-space: pre-line
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..b8eb48811f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object, ::cue(b), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="bold_white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..ffc8721a16
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object, ::cue(b), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-weight: bold;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..ab1f1009e6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object, ::cue(b), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="bold_white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..b8b6025c31
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object, ::cue(b), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-weight: bold;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped.html
new file mode 100644
index 0000000000..bc116eb669
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object, ::cue(b), white-space: pre (cue that wraps)</title>
+<link rel="match" href="bold_white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/bold_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class-ref.html
new file mode 100644
index 0000000000..e8ce47ef8d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object with class, ::cue(.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b>, <b class="green">test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class.html
new file mode 100644
index 0000000000..c3173c2265
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object with class, ::cue(.foo) selector</title>
+<link rel="match" href="bold_with_class-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector-ref.html
new file mode 100644
index 0000000000..5de9e15149
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bold object with class, ::cue(b.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <b>test subtitle</b>, <b class="green">test subtitle</b></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector.html
new file mode 100644
index 0000000000..611fdd4890
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/bold_object/bold_with_class_object_specific_selector.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, bold object with class, ::cue(b.foo) selector</title>
+<link rel="match" href="bold_with_class_object_specific_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(b.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_bold_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp-ref.html
new file mode 100644
index 0000000000..bbd5d40132
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object animation with timestamp, ::cue(c:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp.html
new file mode 100644
index 0000000000..3313941fc3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_animation_with_timestamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object animation with timestamp, ::cue(c:past) selector</title>
+<link rel="match" href="class_animation_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c:past) {
+ -o-animation: test 9s steps(2, start);
+ animation: test 9s steps(2, start);
+}
+@-o-keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+@keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_with_timestamp.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties-ref.html
new file mode 100644
index 0000000000..5639c67ac5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), background properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties.html
new file mode 100644
index 0000000000..2d8c2f8657
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), background properties</title>
+<link rel="match" href="class_background_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ background-color: #0f0;
+ background-image: url('../../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: black;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand-ref.html
new file mode 100644
index 0000000000..a688693582
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), background shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand.html
new file mode 100644
index 0000000000..52ab133567
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_background_shorthand.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), background shorthand</title>
+<link rel="match" href="class_background_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color-ref.html
new file mode 100644
index 0000000000..22584f6910
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), color: #0000ff</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ color: #0000ff;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color.html
new file mode 100644
index 0000000000..47c4be5886
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_color.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), color: #0000ff</title>
+<link rel="match" href="class_color-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ color: #0000ff;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties-ref.html
new file mode 100644
index 0000000000..62ab14239e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font: italic small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties.html
new file mode 100644
index 0000000000..5658f81688
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), font properties</title>
+<link rel="match" href="class_font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand-ref.html
new file mode 100644
index 0000000000..fe17d8f418
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand.html
new file mode 100644
index 0000000000..aa243537a7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), font shorthand</title>
+<link rel="match" href="class_font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace-ref.html
new file mode 100644
index 0000000000..1370516236
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|c) should match</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.green {
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace.html
new file mode 100644
index 0000000000..3989f2180a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_namespace.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|c) should match</title>
+<link rel="match" href="class_namespace-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ color: green;
+ font-family: Ahem, sans-serif
+}
+::cue(*|c) {
+ color: red
+}
+::cue(|c) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties-ref.html
new file mode 100644
index 0000000000..cd712eab23
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), outline properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties.html
new file mode 100644
index 0000000000..82fdc1445f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_properties.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), outline properties</title>
+<link rel="match" href="class_outline_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand-ref.html
new file mode 100644
index 0000000000..eb0195f269
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), outline shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand.html
new file mode 100644
index 0000000000..881a0967a3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_outline_shorthand.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), outline shorthand</title>
+<link rel="match" href="class_outline_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..d7eabfac2b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through.html
new file mode 100644
index 0000000000..cf6caa4456
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), text-decoration: line-through</title>
+<link rel="match" href="class_text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow-ref.html
new file mode 100644
index 0000000000..22c339c8c5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(c), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow.html
new file mode 100644
index 0000000000..786f9b7d9e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(c), text-shadow</title>
+<link rel="match" href="class_text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future-ref.html
new file mode 100644
index 0000000000..0567e7e2c0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object transition with timestamp, ::cue(c:future) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future.html
new file mode 100644
index 0000000000..a4a1d755a2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_future.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object transition with timestamp, ::cue(c:future) selector</title>
+<link rel="match" href="class_timestamp_future-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c:future) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_with_2_timestamps.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past-ref.html
new file mode 100644
index 0000000000..20c8a37493
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object transition with timestamp, ::cue(c:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past.html
new file mode 100644
index 0000000000..4d1ceea2d1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_timestamp_past.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object transition with timestamp, ::cue(c:past) selector</title>
+<link rel="match" href="class_timestamp_past-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp-ref.html
new file mode 100644
index 0000000000..7cb9a1ea4f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object transition with timestamp, ::cue(c:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp.html
new file mode 100644
index 0000000000..adb5328b83
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_transition_with_timestamp.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object transition with timestamp, ::cue(c:past) selector</title>
+<link rel="match" href="class_transition_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ -o-transition: color 9s steps(2, start);
+ transition: color 9s steps(2, start);
+}
+::cue(c:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright-ref.html
new file mode 100644
index 0000000000..8bbd791136
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, bidi ruby</title>
+ <meta charset="UTF-8">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ text-align: center;
+ unicode-bidi: -webkit-plaintext;
+ unicode-bidi: plaintext;
+ direction: ltr;
+ writing-mode: vertical-lr;
+ -webkit-writing-mode: vertical-lr;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.combine {
+ -webkit-text-combine: horizontal;
+ text-combine-upright: all;
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>平成<span class="combine">20</span>年4月<span class="combine">16</span>日に</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright.html
new file mode 100644
index 0000000000..fe0d22843d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_vertical_text-combine-upright.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, vertical cue with class to apply text-combine-upright all</title>
+<link rel="match" href="class_vertical_text-combine-upright-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.combine) {
+ text-combine-upright: all;
+ font-family: Ahem, sans-serif;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_text-combine-upright.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..b710c322ee
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, class object, ::cue(c), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ font-family: sans-serif;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<div class="video">
+ <video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span>
+</div>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped.html
new file mode 100644
index 0000000000..ee38e36584
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object, ::cue(c), white-space: normal (cue that wraps)</title>
+<link rel="match" href="class_white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap-ref.html
new file mode 100644
index 0000000000..4176a6553d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object, ::cue(c), white-space: nowrap (cue does not wrap)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap.html
new file mode 100644
index 0000000000..c86bcb6b62
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_nowrap.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object, ::cue(c), white-space: nowrap (cue does not wrap)</title>
+<link rel="match" href="class_white-space_nowrap-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..34bf662975
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Reference for WebVTT rendering, class object, ::cue(c), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ font-family: sans-serif;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<div class="video">
+ <video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ </video>
+ <span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span>
+</div>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..0a1b7206f8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object, ::cue(c), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="class_white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..bf642420fa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object, ::cue(c), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..3b11fd5e8f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object, ::cue(c), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="class_white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..a681294fec
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object, ::cue(c), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped.html
new file mode 100644
index 0000000000..dbca54f5c4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object, ::cue(c), white-space: pre (cue that wraps)</title>
+<link rel="match" href="class_white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/class_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class-ref.html
new file mode 100644
index 0000000000..7f524ca846
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object with class, ::cue(.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span>, <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class.html
new file mode 100644
index 0000000000..9b24c87b3e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object with class, ::cue(.foo) selector</title>
+<link rel="match" href="class_with_class-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector-ref.html
new file mode 100644
index 0000000000..15fcc65178
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, class object with class, ::cue(c.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span>, <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector.html
new file mode 100644
index 0000000000..9812c969b2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/class_object/class_with_class_object_specific_selector.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, class object with class, ::cue(c.foo) selector</title>
+<link rel="match" href="class_with_class_object_specific_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(c.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_class_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex-ref.html
new file mode 100644
index 0000000000..9b1d412d5a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), color: #60ff60</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: #60ff60;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex.html
new file mode 100644
index 0000000000..08f77c7b42
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hex.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), color: #60ff60</title>
+<link rel="match" href="color_hex-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ color: #60ff60;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla-ref.html
new file mode 100644
index 0000000000..0ad35cd63b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), color: hsla()</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: hsla(100,100%,50%,0.5);
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla.html
new file mode 100644
index 0000000000..eb3f29b650
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_hsla.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), color: hsla()</title>
+<link rel="match" href="color_hsla-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ color: hsla(100,100%,50%,0.5);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba-ref.html
new file mode 100644
index 0000000000..15cc158bc8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), color: rgba()</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: rgba(128,255,128,0.5);
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba.html
new file mode 100644
index 0000000000..1045626b4c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/color_rgba.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), color: rgba()</title>
+<link rel="match" href="color_rgba-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ color: rgba(128,255,128,0.5);
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon-ref.html
new file mode 100644
index 0000000000..e2ccf63de3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, :cue()</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon.html
new file mode 100644
index 0000000000..3494918c1c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/cue_func_selector_single_colon.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, :cue()</title>
+<link rel="match" href="cue_func_selector_single_colon-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+:cue(*) {
+ background: red;
+ color: yellow
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties-ref.html
new file mode 100644
index 0000000000..ce446d9e96
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties.html
new file mode 100644
index 0000000000..e38cc7e0ca
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), font properties</title>
+<link rel="match" href="font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand-ref.html
new file mode 100644
index 0000000000..4c9d11a16e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand.html
new file mode 100644
index 0000000000..9deb49379b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), font shorthand</title>
+<link rel="match" href="font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font: italic small-caps bold 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color-ref.html
new file mode 100644
index 0000000000..fce51702f7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, cue with ID, ::cue(#foo) selector</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-size: 9px;
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color.html
new file mode 100644
index 0000000000..0371fe1c24
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/id_color.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, cue with ID, ::cue(#foo) selector</title>
+<link rel="match" href="id_color-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(#foo) {
+ font-family: Ahem, sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/cue_with_id.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element-ref.html
new file mode 100644
index 0000000000..caef6dc409
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element-ref.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(*), css properties with value inherit should inherit from media element</title>
+<style>
+.video {
+ position: absolute;
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ color: #f0f;
+ white-space: pre-wrap;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-decoration: overline underline line-through;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+ font-size: 9px;
+}
+.videoWhite {
+ position: absolute;
+ top: 0;
+ left: 160px;
+ width: 960px;
+ height: 180px;;
+ background: #fff;
+ z-index: 1;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ text-align: center;
+ outline: inherit;
+ text-shadow: inherit;
+ text-decoration: inherit;
+ outline-bottom: none;
+ z-index: 2
+}
+.cue > span {
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ text-decoration: inherit;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><div class="videoWhite"></div><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element.html
new file mode 100644
index 0000000000..d2a7f0146f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/inherit_values_from_media_element.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(*), css properties with value inherit should inherit from media element</title>
+<link rel="match" href="inherit_values_from_media_element-ref.html">
+<style>
+video {
+ color: #f0f;
+ white-space: pre-wrap;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-decoration: overline underline line-through;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+}
+::cue(*) {
+ white-space: inherit;
+ font: inherit;
+ color: inherit;
+ text-decoration: inherit;
+ text-shadow: inherit;
+ background: inherit;
+ outline: inherit;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp-ref.html
new file mode 100644
index 0000000000..14e4fced51
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object animation with timestamp, ::cue(i:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp.html
new file mode 100644
index 0000000000..42a44d437b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_animation_with_timestamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object animation with timestamp, ::cue(i:past) selector</title>
+<link rel="match" href="italic_animation_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i:past) {
+ -o-animation: test 9s steps(2, start);
+ animation: test 9s steps(2, start);
+}
+@-o-keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+@keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties-ref.html
new file mode 100644
index 0000000000..7af39a3693
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), background properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties.html
new file mode 100644
index 0000000000..0db33d04fc
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), background properties</title>
+<link rel="match" href="italic_background_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ background-color: #0f0;
+ background-image: url('../../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: black;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand-ref.html
new file mode 100644
index 0000000000..030c31609f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), background shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand.html
new file mode 100644
index 0000000000..e98fad3a8b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_background_shorthand.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), background shorthand</title>
+<link rel="match" href="italic_background_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color-ref.html
new file mode 100644
index 0000000000..dd8c1d2fc1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), color: #0000ff</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ color: #0000ff;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color.html
new file mode 100644
index 0000000000..35ec74a37c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_color.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), color: #0000ff</title>
+<link rel="match" href="italic_color-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ color: #0000ff;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties-ref.html
new file mode 100644
index 0000000000..1d0312a1c6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ font: italic small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties.html
new file mode 100644
index 0000000000..873b7b3f98
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), font properties</title>
+<link rel="match" href="italic_font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand-ref.html
new file mode 100644
index 0000000000..0abd4d3225
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand.html
new file mode 100644
index 0000000000..7f52e00ec4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), font shorthand</title>
+<link rel="match" href="italic_font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace-ref.html
new file mode 100644
index 0000000000..d75cf446ff
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|i) should match</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.green {
+ font-style: italic;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace.html
new file mode 100644
index 0000000000..9615d8134a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_namespace.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|i) should match</title>
+<link rel="match" href="italic_namespace-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ color: green;
+}
+::cue(*|i) {
+ color: red
+}
+::cue(|i) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties-ref.html
new file mode 100644
index 0000000000..77e4d70053
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), outline properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties.html
new file mode 100644
index 0000000000..1e5d3485aa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_properties.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), outline properties</title>
+<link rel="match" href="italic_outline_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand-ref.html
new file mode 100644
index 0000000000..57ce50fab6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), outline shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand.html
new file mode 100644
index 0000000000..237a3884a2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_outline_shorthand.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), outline shorthand</title>
+<link rel="match" href="italic_outline_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..814440a571
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through.html
new file mode 100644
index 0000000000..a4e40060b2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), text-decoration: line-through</title>
+<link rel="match" href="italic_text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow-ref.html
new file mode 100644
index 0000000000..4776560409
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(i), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > i {
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow.html
new file mode 100644
index 0000000000..af63481e0a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(i), text-shadow</title>
+<link rel="match" href="italic_text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future-ref.html
new file mode 100644
index 0000000000..bd27d1b895
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object transition with timestamp, ::cue(i:future) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-style: italic;
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future.html
new file mode 100644
index 0000000000..30d707be58
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_future.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object transition with timestamp, ::cue(i:future) selector</title>
+<link rel="match" href="italic_timestamp_future-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i:future) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_with_2_timestamps.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past-ref.html
new file mode 100644
index 0000000000..b721f252d5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object transition with timestamp, ::cue(i:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ font-style: italic;
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past.html
new file mode 100644
index 0000000000..24de973ef4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_timestamp_past.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object transition with timestamp, ::cue(i:past) selector</title>
+<link rel="match" href="italic_timestamp_past-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp-ref.html
new file mode 100644
index 0000000000..019e66db54
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object transition with timestamp, ::cue(i:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-style: italic;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp.html
new file mode 100644
index 0000000000..37aea9d1d2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_transition_with_timestamp.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object transition with timestamp, ::cue(i:past) selector</title>
+<link rel="match" href="italic_transition_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ -o-transition: color 9s steps(2, start);
+ transition: color 9s steps(2, start);
+}
+::cue(i:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..5a50562ef7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object, ::cue(i), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-style: italic;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped.html
new file mode 100644
index 0000000000..d00fc920ae
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object, ::cue(i), white-space: normal (cue that wraps)</title>
+<link rel="match" href="italic_white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap-ref.html
new file mode 100644
index 0000000000..fddae1e0aa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object, ::cue(i), white-space: nowrap (cue does not wrap)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-style: italic;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap.html
new file mode 100644
index 0000000000..1a975adaf4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_nowrap.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object, ::cue(i), white-space: nowrap (cue does not wrap)</title>
+<link rel="match" href="italic_white-space_nowrap-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..3d075bf6da
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object, ::cue(i), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-style: italic;
+ white-space: pre-line
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..bd19196d83
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object, ::cue(i), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="italic_white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..be50ab9abe
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object, ::cue(i), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-style: italic;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..5a02026050
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object, ::cue(i), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="italic_white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..3eb92d702a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object, ::cue(i), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ font-style: italic;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped.html
new file mode 100644
index 0000000000..80e2dd0f92
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object, ::cue(i), white-space: pre (cue that wraps)</title>
+<link rel="match" href="italic_white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/italic_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class-ref.html
new file mode 100644
index 0000000000..f1d54d9e7f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object with class, ::cue(.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i>, <i class="green">test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class.html
new file mode 100644
index 0000000000..fa77b699fe
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object with class, ::cue(.foo) selector</title>
+<link rel="match" href="italic_with_class-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector-ref.html
new file mode 100644
index 0000000000..00f9a8fc29
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, italic object with class, ::cue(i.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <i>test subtitle</i>, <i class="green">test subtitle</i></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector.html
new file mode 100644
index 0000000000..caace97154
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/italic_object/italic_with_class_object_specific_selector.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, italic object with class, ::cue(i.foo) selector</title>
+<link rel="match" href="italic_with_class_object_specific_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(i.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_italic_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties-ref.html
new file mode 100644
index 0000000000..333cdb818b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), properties that should not affect the cue</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties.html
new file mode 100644
index 0000000000..e66f9c0792
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_allowed_properties.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), properties that should not affect the cue</title>
+<link rel="match" href="not_allowed_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ border: 2px solid red;
+ border-radius: 5px;
+ bottom: 300px;
+ box-shadow: 5px 5px 5px 5px #123456;
+ box-sizing: border-box;
+ clip: rect(0px, 5px, 0px, 5px);
+ columns: 100px 2;
+ content: 'hello!';
+ display: inline-block;
+ float: left;
+ font-family: sans-serif;
+ height: 90px;
+ left: -150px;
+ letter-spacing: 20px;
+ margin: 20px;
+ min-height: 100px;
+ min-width: 100px;
+ opacity: 0.2;
+ overflow: scroll;
+ padding: 20px;
+ position: absolute;
+ right: 200px;
+ text-align: left;
+ text-indent: 50px;
+ top: -50px;
+ width: 140px;
+ word-spacing: 50px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector-ref.html
new file mode 100644
index 0000000000..d7b46209e9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(:not(:root)) should not match the root</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ color: lime
+}
+</style>
+<div class="video"><span class="cue"><span>Foo<span>bar</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector.html
new file mode 100644
index 0000000000..468e5ba004
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/not_root_selector.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(:not(:root)) should not match the root</title>
+<link rel="match" href="not_root_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(:not(:root)) {
+ color:lime
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/foo_c_bar.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties-ref.html
new file mode 100644
index 0000000000..a4cf1518d1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), outline properties</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties.html
new file mode 100644
index 0000000000..8510ab41dd
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), outline properties</title>
+<link rel="match" href="outline_properties-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand-ref.html
new file mode 100644
index 0000000000..c808acba76
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), outline shorthand</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand.html
new file mode 100644
index 0000000000..88f7a4bdb7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/outline_shorthand.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), outline shorthand</title>
+<link rel="match" href="outline_shorthand-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: Ahem, sans-serif;
+ outline: solid #00f 2px;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace-ref.html
new file mode 100644
index 0000000000..28602829d2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|*) should match the root</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace.html
new file mode 100644
index 0000000000..0829a2be81
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_namespace.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|*) should match the root</title>
+<link rel="match" href="root_namespace-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif
+}
+::cue(*|*) {
+ color: red
+}
+::cue(|*) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector-ref.html
new file mode 100644
index 0000000000..a6840f1519
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(:root) should match the root</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: lime;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector.html
new file mode 100644
index 0000000000..532c83a754
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/root_selector.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(:root) should match the root</title>
+<link rel="match" href="root_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(:root) {
+ color:lime
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..537f3ebf95
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through.html
new file mode 100644
index 0000000000..1f13da7197
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), text-decoration: line-through</title>
+<link rel="match" href="text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline-ref.html
new file mode 100644
index 0000000000..893bbfd02a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), text-decoration: overline</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: overline;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline.html
new file mode 100644
index 0000000000..625b1fe1f5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), text-decoration: overline</title>
+<link rel="match" href="text-decoration_overline-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: sans-serif;
+ text-decoration: overline;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through-ref.html
new file mode 100644
index 0000000000..a8f54e2fdd
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), text-decoration: overline underline line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: overline underline line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through.html
new file mode 100644
index 0000000000..da162cc898
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_overline_underline_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), text-decoration: overline underline line-through</title>
+<link rel="match" href="text-decoration_overline_underline_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: sans-serif;
+ text-decoration: overline underline line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline-ref.html
new file mode 100644
index 0000000000..46bada32f7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), text-decoration: underline</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline.html
new file mode 100644
index 0000000000..7d53e549fa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-decoration_underline.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), text-decoration: underline</title>
+<link rel="match" href="text-decoration_underline-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: sans-serif;
+ text-decoration: underline;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow-ref.html
new file mode 100644
index 0000000000..7fcb4e1626
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow.html
new file mode 100644
index 0000000000..42dd8f6af9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), text-shadow</title>
+<link rel="match" href="text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root-ref.html
new file mode 100644
index 0000000000..95d3f775ec
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(root) should match nothing; the root element should have no name</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root.html
new file mode 100644
index 0000000000..beaf6e73fa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/type_selector_root.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(root) should match nothing; the root element should have no name</title>
+<link rel="match" href="type_selector_root-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(root) {
+ color:yellow;
+ background:red
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp-ref.html
new file mode 100644
index 0000000000..4836d205d6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object animation with timestamp, ::cue(u:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp.html
new file mode 100644
index 0000000000..c4584b3014
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_animation_with_timestamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object animation with timestamp, ::cue(u:past) selector</title>
+<link rel="match" href="underline_animation_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u:past) {
+ -o-animation: test 9s steps(2, start);
+ animation: test 9s steps(2, start);
+}
+@-o-keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+@keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties-ref.html
new file mode 100644
index 0000000000..a56ed92f20
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), background properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties.html
new file mode 100644
index 0000000000..5312955e82
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), background properties</title>
+<link rel="match" href="underline_background_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ background-color: #0f0;
+ background-image: url('../../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: black;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand-ref.html
new file mode 100644
index 0000000000..a87f5bd1c7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), background shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand.html
new file mode 100644
index 0000000000..84c97b07d0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_background_shorthand.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), background shorthand</title>
+<link rel="match" href="underline_background_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color-ref.html
new file mode 100644
index 0000000000..2f77c824e6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), color: #0000ff</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ color: #0000ff;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color.html
new file mode 100644
index 0000000000..2fe4234692
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_color.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), color: #0000ff</title>
+<link rel="match" href="underline_color-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ color: #0000ff;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties-ref.html
new file mode 100644
index 0000000000..5acb4e56cf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ font: italic small-caps normal 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties.html
new file mode 100644
index 0000000000..29fed1175e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), font properties</title>
+<link rel="match" href="underline_font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: normal;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand-ref.html
new file mode 100644
index 0000000000..5326c4883f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ font: normal small-caps normal 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand.html
new file mode 100644
index 0000000000..54630d44de
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), font shorthand</title>
+<link rel="match" href="underline_font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font: normal small-caps normal 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace-ref.html
new file mode 100644
index 0000000000..0823f44e34
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|u) should match</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.green {
+ text-decoration: underline;
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace.html
new file mode 100644
index 0000000000..ab6378b229
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_namespace.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|u) should match</title>
+<link rel="match" href="underline_namespace-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ color: green;
+}
+::cue(*|u) {
+ color: red
+}
+::cue(|u) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties-ref.html
new file mode 100644
index 0000000000..04fbe5a54e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), outline properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties.html
new file mode 100644
index 0000000000..7602da0e1a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_properties.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), outline properties</title>
+<link rel="match" href="underline_outline_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand-ref.html
new file mode 100644
index 0000000000..47ac3ce14c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), outline shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand.html
new file mode 100644
index 0000000000..40645d25ab
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_outline_shorthand.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), outline shorthand</title>
+<link rel="match" href="underline_outline_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..6f78eb5df7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through.html
new file mode 100644
index 0000000000..e238ccff92
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), text-decoration: line-through</title>
+<link rel="match" href="underline_text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow-ref.html
new file mode 100644
index 0000000000..daf2c614e5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(u), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > u {
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow.html
new file mode 100644
index 0000000000..69c08fbae2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(u), text-shadow</title>
+<link rel="match" href="underline_text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline.vtt">
+</video>
+<script>
+document.getElementsByTagName('track')[0].track.mode = 'showing';
+</script>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future-ref.html
new file mode 100644
index 0000000000..502104107a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object transition with timestamp, ::cue(u:future) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ text-decoration: underline;
+ color: white;
+}
+.green {
+ text-decoration: underline;
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future.html
new file mode 100644
index 0000000000..dff106cdbf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_future.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object transition with timestamp, ::cue(u:future) selector</title>
+<link rel="match" href="underline_timestamp_future-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u:future) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_with_2_timestamps.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past-ref.html
new file mode 100644
index 0000000000..7ab25929ba
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object transition with timestamp, ::cue(u:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ text-decoration: underline;
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past.html
new file mode 100644
index 0000000000..3ca96e8d4f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_timestamp_past.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object transition with timestamp, ::cue(u:past) selector</title>
+<link rel="match" href="underline_timestamp_past-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp-ref.html
new file mode 100644
index 0000000000..97e2b1afc2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object transition with timestamp, ::cue(u:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ text-decoration: underline;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp.html
new file mode 100644
index 0000000000..7b34fa2f98
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_transition_with_timestamp.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object transition with timestamp, ::cue(u:past) selector</title>
+<link rel="match" href="underline_transition_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ -o-transition: color 9s steps(2, start);
+ transition: color 9s steps(2, start);
+}
+::cue(u:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..12563423a6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object, ::cue(u), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped.html
new file mode 100644
index 0000000000..23cec2fb8f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(u), white-space: normal (cue that wraps)</title>
+<link rel="match" href="underline_white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap-ref.html
new file mode 100644
index 0000000000..7e813106a1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object, ::cue(u), white-space: nowrap (cue does not wrap)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap.html
new file mode 100644
index 0000000000..0b143f9d50
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_nowrap.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object, ::cue(u), white-space: nowrap (cue does not wrap)</title>
+<link rel="match" href="underline_white-space_nowrap-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..227651700f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object, ::cue(u), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+ white-space: pre-line
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..cd1a7baff4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object, ::cue(u), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="underline_white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..756a66fc17
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object, ::cue(u), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..c5971810da
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object, ::cue(u), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="underline_white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..8b9f12a4e0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object, ::cue(u), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ text-decoration: underline;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped.html
new file mode 100644
index 0000000000..8857446242
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object, ::cue(u), white-space: pre (cue that wraps)</title>
+<link rel="match" href="underline_white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/underline_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class-ref.html
new file mode 100644
index 0000000000..2af8b31774
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object with class, ::cue(.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u>, <u class="green">test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class.html
new file mode 100644
index 0000000000..12d73a9803
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object with class, ::cue(.foo) selector</title>
+<link rel="match" href="underline_with_class-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector-ref.html
new file mode 100644
index 0000000000..a2b9350bc4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, underline object with class, ::cue(u.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <u>test subtitle</u>, <u class="green">test subtitle</u></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector.html
new file mode 100644
index 0000000000..52b3e0e859
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/underline_object/underline_with_class_object_specific_selector.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, underline object with class, ::cue(u.foo) selector</title>
+<link rel="match" href="underline_with_class_object_specific_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(u.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_underline_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp-ref.html
new file mode 100644
index 0000000000..7a8a94fecd
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object animation with timestamp, ::cue(v:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp.html
new file mode 100644
index 0000000000..09baf69c01
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_animation_with_timestamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object animation with timestamp, ::cue(v:past) selector</title>
+<link rel="match" href="voice_animation_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v:past) {
+ -o-animation: test 9s steps(2, start);
+ animation: test 9s steps(2, start);
+}
+@-o-keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+@keyframes test {
+ 0% {
+ color: #ffffff;
+ }
+ 100% {
+ color: #00ff00;
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties-ref.html
new file mode 100644
index 0000000000..c45b7a550a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), background properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties.html
new file mode 100644
index 0000000000..600915aa21
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), background properties</title>
+<link rel="match" href="voice_background_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ background-color: #0f0;
+ background-image: url('../../../media/background.gif');
+ background-repeat: repeat-x;
+ background-position: top left;
+ color: black;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand-ref.html
new file mode 100644
index 0000000000..5766b54423
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), background shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand.html
new file mode 100644
index 0000000000..aeae0c9e7b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_background_shorthand.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), background shorthand</title>
+<link rel="match" href="voice_background_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ background: #0f0 url('../../../media/background.gif') repeat-x top left;
+ color: #000;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color-ref.html
new file mode 100644
index 0000000000..81919b22e2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), color: #0000ff</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ color: #0000ff;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color.html
new file mode 100644
index 0000000000..c72b2d531f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_color.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), color: #0000ff</title>
+<link rel="match" href="voice_color-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ color: #0000ff;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties-ref.html
new file mode 100644
index 0000000000..4ed65ec581
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), font properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font: italic small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties.html
new file mode 100644
index 0000000000..a8b691cac4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_properties.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), font properties</title>
+<link rel="match" href="voice_font_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-style: italic;
+ font-variant: small-caps;
+ font-weight: bold;
+ font-size: 9px;
+ line-height: 18px;
+ font-family: sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand-ref.html
new file mode 100644
index 0000000000..e2ca7e1839
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), font shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand.html
new file mode 100644
index 0000000000..0b91ad1205
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_font_shorthand.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), font shorthand</title>
+<link rel="match" href="voice_font_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font: normal small-caps bold 9px/18px sans-serif;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace-ref.html
new file mode 100644
index 0000000000..421789935c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace-ref.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(|v) should match</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+.green {
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace.html
new file mode 100644
index 0000000000..d379b52272
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_namespace.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(|v) should match</title>
+<link rel="match" href="voice_namespace-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ color: green;
+ font-family: Ahem, sans-serif
+}
+::cue(*|v) {
+ color: red
+}
+::cue(|v) {
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties-ref.html
new file mode 100644
index 0000000000..da004b3abf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), outline properties</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties.html
new file mode 100644
index 0000000000..f9b1dd2503
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_properties.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), outline properties</title>
+<link rel="match" href="voice_outline_properties-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ outline-style: solid;
+ outline-color: #00f;
+ outline-width: 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand-ref.html
new file mode 100644
index 0000000000..b3b85edeae
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand-ref.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), outline shorthand</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ display: inline-block;
+ margin-left: -2px;
+ margin-right: -2px;
+ border: solid #00f 2px;
+ border-bottom: none;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand.html
new file mode 100644
index 0000000000..f60ca62c20
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_outline_shorthand.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), outline shorthand</title>
+<link rel="match" href="voice_outline_shorthand-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through-ref.html
new file mode 100644
index 0000000000..3d43b6a5c5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), text-decoration: line-through</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ text-decoration: line-through;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through.html
new file mode 100644
index 0000000000..dc52936c53
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-decoration_line-through.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), text-decoration: line-through</title>
+<link rel="match" href="voice_text-decoration_line-through-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ text-decoration: line-through;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow-ref.html
new file mode 100644
index 0000000000..bd237e99cb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v), text-shadow</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow.html
new file mode 100644
index 0000000000..4599913eed
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_text-shadow.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v), text-shadow</title>
+<link rel="match" href="voice_text-shadow-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ font-family: sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future-ref.html
new file mode 100644
index 0000000000..75239939c3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object transition with timestamp, ::cue(v:future) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future.html
new file mode 100644
index 0000000000..c66ad028a7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_future.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object transition with timestamp, ::cue(v:future) selector</title>
+<link rel="match" href="voice_timestamp_future-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v:future) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_with_2_timestamps.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past-ref.html
new file mode 100644
index 0000000000..c142ecacac
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object transition with timestamp, ::cue(v:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past.html
new file mode 100644
index 0000000000..64c7b99f93
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_timestamp_past.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object transition with timestamp, ::cue(v:past) selector</title>
+<link rel="match" href="voice_timestamp_past-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp-ref.html
new file mode 100644
index 0000000000..039034d9d7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object transition with timestamp, ::cue(v:past) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #80ff80;
+}
+</style>
+<div class="video"><span class="cue"><span><span class="green">This is a test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp.html
new file mode 100644
index 0000000000..6eb8b1a82f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_transition_with_timestamp.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object transition with timestamp, ::cue(v:past) selector</title>
+<link rel="match" href="voice_transition_with_timestamp-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ -o-transition: color 9s steps(2, start);
+ transition: color 9s steps(2, start);
+}
+::cue(v:past) {
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); this.currentTime = 0.2; takeScreenshotDelayed(1000);">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_with_timestamp.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute-ref.html
new file mode 100644
index 0000000000..c4a91ab892
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(v[voice="bar"])</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span>, <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute.html
new file mode 100644
index 0000000000..b9df455210
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_voice_attribute.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(v[voice="bar"])</title>
+<link rel="match" href="voice_voice_attribute-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v[voice="bar"]) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_two_voices.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..ad67ecc03f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object, ::cue(v), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped.html
new file mode 100644
index 0000000000..1ceea7b7ea
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(v), white-space: normal (cue that wraps)</title>
+<link rel="match" href="voice_white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap-ref.html
new file mode 100644
index 0000000000..1d682da289
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object, ::cue(v), white-space: nowrap (cue does not wrap)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative;
+ overflow: hidden;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap.html
new file mode 100644
index 0000000000..145a6bc3d9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_nowrap.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(v), white-space: nowrap (cue does not wrap)</title>
+<link rel="match" href="voice_white-space_nowrap-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..6ddaff8650
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object, ::cue(v), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre-line
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..6eb579774f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(v), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="voice_white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..3822d83f2b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object, ::cue(v), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre-wrap
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..5058fb2d2b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(v), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="voice_white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..5f32a25d3f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object, ::cue(v), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped.html
new file mode 100644
index 0000000000..e6e01391f6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object, ::cue(v), white-space: pre (cue that wraps)</title>
+<link rel="match" href="voice_white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/voice_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class-ref.html
new file mode 100644
index 0000000000..6090532837
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object with class, ::cue(.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span>, <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class.html
new file mode 100644
index 0000000000..c32f7edb05
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object with class, ::cue(.foo) selector</title>
+<link rel="match" href="voice_with_class-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector-ref.html
new file mode 100644
index 0000000000..f6e9c19be9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, voice object with class, ::cue(v.foo) selector</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.green {
+ color: #00ff00;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span>, <span class="green">test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector.html
new file mode 100644
index 0000000000..dbff16d122
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/voice_object/voice_with_class_object_specific_selector.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, voice object with class, ::cue(v.foo) selector</title>
+<link rel="match" href="voice_with_class_object_specific_selector-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(v.foo) {
+ font-family: sans-serif;
+ color: #00ff00;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../../support/test_voice_with_class.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped-ref.html
new file mode 100644
index 0000000000..b4f797d3b9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: normal (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>foo bar baz</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped.html
new file mode 100644
index 0000000000..ae9ef6d89f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_normal_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: normal (cue that wraps)</title>
+<link rel="match" href="white-space_normal_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: normal
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/foo_space_space_bar_LF_baz.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped-ref.html
new file mode 100644
index 0000000000..901257b613
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: nowrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: nowrap
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped.html
new file mode 100644
index 0000000000..ab3217fd66
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_nowrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: nowrap (cue that wraps)</title>
+<link rel="match" href="white-space_nowrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: nowrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long_size_20.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped-ref.html
new file mode 100644
index 0000000000..4b80518475
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: pre-line (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 40%;
+ right: 0;
+ width: 20%;
+ text-align: center;
+}
+.cue > span {
+ font-family: sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: normal
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A<br> A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped.html
new file mode 100644
index 0000000000..f075dfe825
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-line_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: pre-line (cue that wraps)</title>
+<link rel="match" href="white-space_pre-line_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: pre-line
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long_size_20.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-ref.html
new file mode 100644
index 0000000000..d21f199bed
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: pre</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped-ref.html
new file mode 100644
index 0000000000..8e9e33d569
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: pre-wrap (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ font-family: sans-serif;
+ text-align: center;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A <br> A <br>A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped.html
new file mode 100644
index 0000000000..866ca52bc8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre-wrap_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: pre-wrap (cue that wraps)</title>
+<link rel="match" href="white-space_pre-wrap_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: pre-wrap
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre.html
new file mode 100644
index 0000000000..3da234358b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: pre</title>
+<link rel="match" href="white-space_pre-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped-ref.html
new file mode 100644
index 0000000000..394549b1d8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, ::cue(), white-space: pre (cue that wraps)</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ font-size: 9px;
+ position: relative
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ font-family: sans-serif;
+ text-align: center;
+ overflow: hidden;
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+ white-space: pre
+}
+</style>
+<div class="video"><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped.html
new file mode 100644
index 0000000000..5432de4973
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/white-space_pre_wrapped.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, ::cue(), white-space: pre (cue that wraps)</title>
+<link rel="match" href="white-space_pre_wrapped-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue(*) {
+ white-space: pre
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style-ref.html
new file mode 100644
index 0000000000..fa388608e5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, default style, bold objects</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font-weight: bold;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style.html
new file mode 100644
index 0000000000..31a8fad06f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/bold_object_default_font-style.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, default style, bold objects</title>
+<link rel="match" href="bold_object_default_font-style-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_bold.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element-ref.html
new file mode 100644
index 0000000000..2fb094846f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element-ref.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, only css properties with default value inherit should inherit from media element</title>
+<style>
+.video {
+ position: absolute;
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ color: #f0f;
+ white-space: pre-line;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+ font-size: 9px;
+}
+.videoWhite {
+ position: absolute;
+ top: 0;
+ left: 160px;
+ width: 960px;
+ height: 180px;;
+ background: #fff;
+ z-index: 1;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 30%;
+ right: 0;
+ width: 40%;
+ text-align: center;
+ z-index: 2
+}
+.cue > span {
+ background-color: rgba(0,0,0,0.8);
+ color: #fff;
+}
+</style>
+<div class="video"><div class="videoWhite"></div><span class="cue"><span>A A A A A A A A A A A</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element.html
new file mode 100644
index 0000000000..e5ed5916e7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/inherit_as_default_value_inherits_values_from_media_element.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, only css properties with default value inherit should inherit from media element</title>
+<link rel="match" href="inherit_as_default_value_inherits_values_from_media_element-ref.html">
+<style>
+video {
+ color: #f0f;
+ white-space: pre-wrap;
+ font: italic small-caps bold 9px/18px sans-serif;
+ text-decoration: overline underline line-through;
+ text-shadow: 0px 0px 5px #0f0;
+ background: #0f0 url('../../media/background.gif') repeat-x top left;
+ outline: solid #00f 2px;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/white-spaces_long.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style-ref.html
new file mode 100644
index 0000000000..76b85bb98f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, default style, italic objects</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ font-style: italic;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style.html
new file mode 100644
index 0000000000..b48f181e4f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/italic_object_default_font-style.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, default style, italic objects</title>
+<link rel="match" href="italic_object_default_font-style-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_italic.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style-ref.html
new file mode 100644
index 0000000000..3769a49d65
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, default style, underline objects</title>
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ font-family: sans-serif;
+ text-align: center
+}
+.cue > span {
+ background: rgba(0,0,0,0.8);
+ color: white;
+}
+.cue > span > span {
+ text-decoration: underline;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a <span>test subtitle</span></span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style.html
new file mode 100644
index 0000000000..8077065173
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/selectors/default_styles/underline_object_default_font-style.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, default style, underline objects</title>
+<link rel="match" href="underline_object_default_font-style-ref.html">
+<style>
+html { overflow:hidden }
+body { margin:0 }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="../../support/test_underline.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50-ref.html
new file mode 100644
index 0000000000..24ac13d9dc
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, size:50%</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+ font-size: 9px;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 25%;
+ right: 0;
+ width: 50%;
+ text-align: center
+}
+.cue > span {
+ font-family: Ahem, sans-serif;
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video"><span class="cue"><span>This is a test subtitle that should wrap</span></span></div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50.html
new file mode 100644
index 0000000000..6dc019754d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/size_50.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, size:50%</title>
+<link rel="match" href="size_50-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font-family: Ahem, sans-serif;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/size_50.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line-ref.html
new file mode 100644
index 0000000000..bcd2dd2942
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, set explicit 'line' and 'position', which will force 'snap-to-line' to false</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ top: 90px;
+ left: 160px;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class=video>
+ <div class="cue">
+ <span class="cueText">foo</span>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line.html
new file mode 100644
index 0000000000..f3705a1879
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/snap-to-line.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, set explicit 'line' and 'position', which will force 'snap-to-line' to false</title>
+<link rel="match" href="snap-to-line-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/snap-to-line.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_completely_move_up.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_completely_move_up.vtt
new file mode 100644
index 0000000000..1ca56e56f6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_completely_move_up.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:100%
+This is a test subtitle
+
+00:00:01.000 --> 00:00:05.000 line:100%
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_down.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_down.vtt
new file mode 100644
index 0000000000..227e7db6e4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_down.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:50%
+This is a test subtitle
+
+00:00:01.000 --> 00:00:05.000 line:52%
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_up.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_up.vtt
new file mode 100644
index 0000000000..7160f3791e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/2_cues_overlapping_partially_move_up.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:100%
+This is a test subtitle
+
+00:00:01.000 --> 00:00:05.000 line:99%
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center.vtt
new file mode 100644
index 0000000000..4b8e14b28b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center
+This is a test
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_long.vtt
new file mode 100644
index 0000000000..57c896d04b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center
+This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_50.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_50.vtt
new file mode 100644
index 0000000000..21ab82bb08
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_50.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center position:50%
+This is a test
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50.vtt
new file mode 100644
index 0000000000..69fd3e00d9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center position:90%
+foo
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50_size_gt_maximum_size.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50_size_gt_maximum_size.vtt
new file mode 100644
index 0000000000..50e80cc3e1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_gt_50_size_gt_maximum_size.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center position:90% size:75%
+Awesome!!!
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50.vtt
new file mode 100644
index 0000000000..86f8c37ec5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center position:10%
+foo
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50_size_gt_maximum_size.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50_size_gt_maximum_size.vtt
new file mode 100644
index 0000000000..a2e307c9cb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_center_position_lt_50_size_gt_maximum_size.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:center position:10% size:75%
+Awesome!!!
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end.vtt
new file mode 100644
index 0000000000..83f691e6ff
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:end
+This is a test
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end_long.vtt
new file mode 100644
index 0000000000..09ace0d227
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_end_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:end
+This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start.vtt
new file mode 100644
index 0000000000..161c457465
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:start
+This is a test
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start_long.vtt
new file mode 100644
index 0000000000..c70ac13eaf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/align_start_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 align:start
+This is a test subtitle that most likely will span over several rows since it is a pretty long cue with a lot of text.
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_ruby.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_ruby.vtt
new file mode 100644
index 0000000000..19e6745016
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_ruby.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+<ruby>.<rt>א<c>א</c></rt>ab)<rt>x</rt></ruby>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_text-combine-upright.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_text-combine-upright.vtt
new file mode 100644
index 0000000000..e3c9914387
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_text-combine-upright.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 vertical:lr
+平成20年4月16日に
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_lr.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_lr.vtt
new file mode 100644
index 0000000000..e991973ab4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_lr.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 vertical:lr
+<ruby>左<rt>ひだり</rt></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...
+二行目
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl-oneline.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl-oneline.vtt
new file mode 100644
index 0000000000..30297e1b4f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl-oneline.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 vertical:rl
+<ruby>右<rt>みぎ</rt></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl.vtt
new file mode 100644
index 0000000000..56fcbd412a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bidi_vertical_rl.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 vertical:rl
+<ruby>右<rt>みぎ</rt></ruby>に<ruby> 見<rt>み</rt></ruby>えるのは...
+二行目
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_long.vtt
new file mode 100644
index 0000000000..c452682e4c
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+<b>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</b>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_2_timestamps.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_2_timestamps.vtt
new file mode 100644
index 0000000000..53508f991f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_2_timestamps.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><b>This is a </b><00:05.000><b>test subtitle</b>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_timestamp.vtt
new file mode 100644
index 0000000000..85474b1b95
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/bold_with_timestamp.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><b>This is a test subtitle</b><00:00.001>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_long.vtt
new file mode 100644
index 0000000000..a551d67743
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+<c>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</c>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_text-combine-upright.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_text-combine-upright.vtt
new file mode 100644
index 0000000000..064f75ad9e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_text-combine-upright.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 vertical:lr
+平成<c.combine>20</c>年4月<c.combine>16</c>日に
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_2_timestamps.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_2_timestamps.vtt
new file mode 100644
index 0000000000..d95f760257
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_2_timestamps.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><c>This is a </c><00:05.000><c>test subtitle</c>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_timestamp.vtt
new file mode 100644
index 0000000000..2e328ab9b7
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/class_with_timestamp.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><c>This is a test subtitle</c><00:00.001>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/cue_with_id.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/cue_with_id.vtt
new file mode 100644
index 0000000000..3a8a88cf73
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/cue_with_id.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+foo
+00:00:00.000 --> 00:00:05.000
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/decode_escaped_entities.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/decode_escaped_entities.vtt
new file mode 100644
index 0000000000..36373d2e20
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/decode_escaped_entities.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+Here are the escaped entities: &amp; &lt; &gt; &lrm; &rlm; &nbsp;
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority.vtt
new file mode 100644
index 0000000000..9471b32be1
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority.vtt
@@ -0,0 +1,25 @@
+WEBVTT
+
+NOTE
+opacity: 0.5; should apply.
+color: green; should apply.
+background: green; should apply because multiple STYLE blocks are supported.
+
+STYLE
+::cue {
+ opacity: 0.5;
+}
+::cue {
+ color: green;
+}
+
+STYLE
+::cue {
+ background: green;
+}
+
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority_layer.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority_layer.vtt
new file mode 100644
index 0000000000..c0f6cd8821
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_cascade_priority_layer.vtt
@@ -0,0 +1,25 @@
+WEBVTT
+
+NOTE
+opacity: 0.5; should apply.
+color: green; should apply.
+background: green; should apply because multiple STYLE blocks are supported.
+
+STYLE
+::cue {
+ opacity: 0.5;
+}
+::cue {
+ color: green !important;
+}
+
+STYLE
+::cue {
+ background: green;
+}
+
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_imports_blocked.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_imports_blocked.vtt
new file mode 100644
index 0000000000..11a84af029
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_imports_blocked.vtt
@@ -0,0 +1,14 @@
+WEBVTT
+
+NOTE
+@import rules are prohibited in WebVTT files.
+
+STYLE
+@import "imported_style.css"
+@import url("imported_style.css")
+
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_invalid_format.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_invalid_format.vtt
new file mode 100644
index 0000000000..51c231a0f8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_invalid_format.vtt
@@ -0,0 +1,79 @@
+WEBVTT
+
+NOTE
+Only color: green; and the green background-image should apply. All other style blocks are invalid.
+
+::cue {
+ background: red;
+}
+
+STYLE
+
+::cue {
+ background: red;
+}
+
+STYLE
+::cue(v[voice=Voice1])
+{
+ background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==
+
+STYLE
+::cue {
+ back
+
+STYLE
+ground: red;
+}
+
+STYLE
+::cue {
+ color: green;
+}
+
+S T Y L E
+::cue {
+ background: red;
+}
+
+ STYLE
+::cue {
+ background: red;
+}
+
+STYLE {
+::cue {
+ background: red;
+}
+}
+
+::cue {
+ background: red;
+}
+
+STYLE Invalid
+::cue {
+ background: red;
+}
+
+style
+::cue {
+ background: red;
+}
+
+STYLE
+<!--::cue {-->
+ background: red;
+}
+
+STYLE
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+
+STYLE
+::cue {
+ background: red;
+}
+
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe-ref.html
new file mode 100644
index 0000000000..f08a607e69
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<title>Reference for Embedded Style: Media Queries</title>
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ color: green;
+}
+</style>
+<video autoplay onplaying="this.onplaying = null; this.pause();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe.html
new file mode 100644
index 0000000000..e27ca60474
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries-iframe.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<title>Embedded Style: Media Queries</title>
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+</style>
+<video autoplay onplaying="this.onplaying = null; this.pause();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="embedded_style_media_queries.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries.vtt
new file mode 100644
index 0000000000..1b875cdd53
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries.vtt
@@ -0,0 +1,34 @@
+WEBVTT
+NOTE
+color: red; should not apply because it is overriden by color: green.
+color: green; should apply because the screen width is less than 1000px.
+background: green; should only apply in the resized test case where the screen is resized to 300px.
+background: red; should not apply because the screen width is greater than 100px.
+STYLE
+::cue
+{
+ color: red;
+}
+@media only screen and (max-height: 1000px) {
+ ::cue
+ {
+ color: green;
+ }
+}
+@media only screen and (max-height: 400px) {
+ ::cue
+ {
+ background: green;
+ }
+}
+}
+@media only screen and (max-height: 100px) {
+ ::cue
+ {
+ background: red;
+ }
+}
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe-ref.html
new file mode 100644
index 0000000000..ab7553e2fc
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>Reference for Embedded Style: Media Queries Resize Frame</title>
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+::cue {
+ color: green;
+ background: green;
+}
+</style>
+<video autoplay onplaying="this.onplaying = null; this.pause();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="embedded_style_without_style.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe.html
new file mode 100644
index 0000000000..f4bfeeaca3
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_media_queries_resized-iframe.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<title>Embedded Style: Media Queries Resize Frame</title>
+<style>
+video {
+ outline: solid;
+ width: 320px;
+ height: 240px;
+}
+</style>
+<video autoplay onplaying="this.onplaying = null; this.pause();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="embedded_style_media_queries.vtt" default>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks1.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks1.vtt
new file mode 100644
index 0000000000..a756c3c06d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks1.vtt
@@ -0,0 +1,12 @@
+WEBVTT
+
+NOTE
+The style in this file should not apply to cues from other text tracks.
+
+STYLE
+::cue {
+ color: green;
+}
+
+00:00:00.000 --> 00:00:05.000
+This <i>is</i> a <b>test</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks2.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks2.vtt
new file mode 100644
index 0000000000..c13757d570
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_multiple_tracks2.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_selectors.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_selectors.vtt
new file mode 100644
index 0000000000..51377255aa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_selectors.vtt
@@ -0,0 +1,54 @@
+WEBVTT
+NOTE
+The first six selectors should apply. The rest should not apply because they do
+not apply to a hypothetical document with a single empty element with no explicit
+name, no namespace, no attribute, no classes, no IDs, and unknown primary language
+that acts as the originating element for the cue pseudo-elements.
+STYLE
+@namespace html url(http://www.w3.org/1999/xhtml);
+:not(video)::cue {
+ background: lime;
+}
+*|*::cue(b) {
+ background: green;
+}
+|*::cue(i) {
+ color: green;
+}
+::cue(i) {
+ background: green;
+}
+*::cue(b) {
+ color: green;
+}
+::cue {
+ font-size: 11px;
+}
+video::cue {
+ background: red;
+}
+:not(|*)::cue {
+ background: red;
+}
+i {
+ color: red;
+}
+* {
+ color: red;
+}
+* ::cue(i) {
+ color: red;
+}
+* > *::cue(i) {
+ color: red;
+}
+* + *::cue(i) {
+ color: red;
+}
+html|*::cue(i) {
+ color: red;
+}
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_urls.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_urls.vtt
new file mode 100644
index 0000000000..db526deb86
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_urls.vtt
@@ -0,0 +1,21 @@
+WEBVTT
+NOTE
+Background for Voice1 should apply.
+The other two backgrounds should not render because non-data URLs are not supported.
+STYLE
+::cue(v[voice=Voice1])
+{
+ background: url(data:image/gif;base64,R0lGODlhEAAQAMQAAORHHOVSKudfOulrSOp3WOyDZu6QdvCchPGolfO0o/XBs/fNwfjZ0frl3/zy7////wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAkAABAALAAAAAAQABAAAAVVICSOZGlCQAosJ6mu7fiyZeKqNKToQGDsM8hBADgUXoGAiqhSvp5QAnQKGIgUhwFUYLCVDFCrKUE1lBavAViFIDlTImbKC5Gm2hB0SlBCBMQiB0UjIQA7)
+}
+::cue(b)
+{
+ background: url("support/background.png")
+}
+::cue(i) {
+ background: url("support/background.png");
+ background: -webkit-image-set(url("support/background.png") 1x, url("support/background.png") 2x);
+}
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_without_style.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_without_style.vtt
new file mode 100644
index 0000000000..321a094fda
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/embedded_style_without_style.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+<v Voice1>This <i>is</i> a <b>test</b> subtitle
+
+00:00:00.000 --> 00:00:05.000
+<v Voice2>Here <i>is</i> a <b>second</b> subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo.vtt
new file mode 100644
index 0000000000..b533895c60
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+Foo
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_c_bar.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_c_bar.vtt
new file mode 100644
index 0000000000..325df1e509
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_c_bar.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+Foo<c>bar</c>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_space_space_bar_LF_baz.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_space_space_bar_LF_baz.vtt
new file mode 100644
index 0000000000..047d80eddf
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/foo_space_space_bar_LF_baz.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+foo bar
+baz
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/imported_style.css b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/imported_style.css
new file mode 100644
index 0000000000..391dd7407f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/imported_style.css
@@ -0,0 +1,3 @@
+::cue {
+ color: red;
+}
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_long.vtt
new file mode 100644
index 0000000000..75cbd1e6ef
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+<i>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</i>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_2_timestamps.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_2_timestamps.vtt
new file mode 100644
index 0000000000..d239c4ee24
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_2_timestamps.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><i>This is a </i><00:05.000><i>test subtitle</i>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_timestamp.vtt
new file mode 100644
index 0000000000..94b03a2077
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/italic_with_timestamp.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><i>This is a test subtitle</i><00:00.001>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_-2_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_-2_long.vtt
new file mode 100644
index 0000000000..0f366c18cc
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_-2_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:-2 size:50%
+This is a test subtitle that will line break
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_0.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_0.vtt
new file mode 100644
index 0000000000..18d2bd46ae
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_0.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:0
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_1_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_1_long.vtt
new file mode 100644
index 0000000000..414c9de391
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_1_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:1 size:50%
+This is a test subtitle that will line break
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_50_percent.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_50_percent.vtt
new file mode 100644
index 0000000000..acf612c44f
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_50_percent.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 line:50%
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap.vtt
new file mode 100644
index 0000000000..6a1326e941
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 line:9
+This is a test subtitle
+
+00:00:00.000 --> 00:00:10.000 line:50%
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap_move_up.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap_move_up.vtt
new file mode 100644
index 0000000000..819f8e2a21
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_integer_and_percent_overlap_move_up.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 line:10
+This is a test subtitle
+
+00:00:00.000 --> 00:00:10.000 line:48%
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap.vtt
new file mode 100644
index 0000000000..47819a0510
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 line:45%
+This is a test subtitle
+
+00:00:00.000 --> 00:00:10.000 line:9
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap_move_up.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap_move_up.vtt
new file mode 100644
index 0000000000..1a7bd7fed5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/line_percent_and_integer_overlap_move_up.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 line:55%
+This is a test subtitle
+
+00:00:00.000 --> 00:00:10.000 line:10
+This is another test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/one_line_cue_plus_wrapped_cue.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/one_line_cue_plus_wrapped_cue.vtt
new file mode 100644
index 0000000000..b9b3fecf6d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/one_line_cue_plus_wrapped_cue.vtt
@@ -0,0 +1,7 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 size:70%
+This is a test subtitle
+
+00:00:00.000 --> 00:00:10.000 size:70%
+This test subtitle wraps and should be visible
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/size_50.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/size_50.vtt
new file mode 100644
index 0000000000..b165af1533
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/size_50.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+This is a test subtitle that should wrap
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/snap-to-line.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/snap-to-line.vtt
new file mode 100644
index 0000000000..2d102812ee
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/snap-to-line.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+NOTE set line as percentage would make 'snap-to-line' to false
+00:00:00.000 --> 00:00:05.000 align:start position:50%,line-left line:50%,start
+foo
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/start_alignment.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/start_alignment.vtt
new file mode 100644
index 0000000000..9a92729381
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/start_alignment.vtt
@@ -0,0 +1,5 @@
+WEBVTT FILE
+
+00:00:00.000 --> 00:00:10.000 align:start line:0
+Hello!
+שלום!
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test.vtt
new file mode 100644
index 0000000000..ab71ec5984
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a test subtitle
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold.vtt
new file mode 100644
index 0000000000..5709f4dd30
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <b>test subtitle</b>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold_with_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold_with_class.vtt
new file mode 100644
index 0000000000..1eebeea5cb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_bold_with_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <b>test subtitle</b>, <b.foo>test subtitle</b>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class.vtt
new file mode 100644
index 0000000000..8ee08aada4
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <c>test subtitle</c>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class_with_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class_with_class.vtt
new file mode 100644
index 0000000000..c17abc9c95
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_class_with_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <c>test subtitle</c>, <c.foo>test subtitle</c>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic.vtt
new file mode 100644
index 0000000000..11c2c81deb
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <i>test subtitle</i>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic_with_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic_with_class.vtt
new file mode 100644
index 0000000000..a2255d000a
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_italic_with_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <i>test subtitle</i>, <i.foo>test subtitle</i>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_long.vtt
new file mode 100644
index 0000000000..826ec1de17
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_two_voices.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_two_voices.vtt
new file mode 100644
index 0000000000..c41fe2e169
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_two_voices.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <v foo>test subtitle</v>, <v bar>test subtitle</v>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline.vtt
new file mode 100644
index 0000000000..8b1f02183d
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <u>test subtitle</u>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline_with_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline_with_class.vtt
new file mode 100644
index 0000000000..7894c87e00
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_underline_with_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <u>test subtitle</u>, <u.foo>test subtitle</u>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice.vtt
new file mode 100644
index 0000000000..3e25cff699
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <v foo>test subtitle</v>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice_with_class.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice_with_class.vtt
new file mode 100644
index 0000000000..8f1f37581b
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/test_voice_with_class.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+This is a <v foo>test subtitle</v>, <v.foo>test subtitle</v>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues.vtt
new file mode 100644
index 0000000000..9ab0f0f450
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues.vtt
@@ -0,0 +1,31 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This text won't be shown in the screen
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues_wrapped.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues_wrapped.vtt
new file mode 100644
index 0000000000..1617b60f54
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/too_many_cues_wrapped.vtt
@@ -0,0 +1,28 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000
+This is a test
+
+00:00:00.000 --> 00:00:10.000 size:70%
+This is a test subtitle that wraps and the part after the first subtitle should be cut out
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_LF_u05D0.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_LF_u05D0.vtt
new file mode 100644
index 0000000000..24cd29be66
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_LF_u05D0.vtt
@@ -0,0 +1,5 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+.
+אab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2028_u05D0.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2028_u05D0.vtt
new file mode 100644
index 0000000000..9367a095a0
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2028_u05D0.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+.
אab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2029_u05D0.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2029_u05D0.vtt
new file mode 100644
index 0000000000..81d21a453e
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u002E_u2029_u05D0.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+.
אab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0041_first.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0041_first.vtt
new file mode 100644
index 0000000000..19dc55c452
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0041_first.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+Aab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u05D0_first.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u05D0_first.vtt
new file mode 100644
index 0000000000..fdc74bf4fa
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u05D0_first.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+אab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0628_first.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0628_first.vtt
new file mode 100644
index 0000000000..a0b953d6c9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u0628_first.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+بab)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u06E9_no_strong_dir.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u06E9_no_strong_dir.vtt
new file mode 100644
index 0000000000..f097151567
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/u06E9_no_strong_dir.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+۩)
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_long.vtt
new file mode 100644
index 0000000000..7f4ee28405
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+<u>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</u>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_2_timestamps.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_2_timestamps.vtt
new file mode 100644
index 0000000000..54905bfb76
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_2_timestamps.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><u>This is a </u><00:05.000><u>test subtitle</u>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_timestamp.vtt
new file mode 100644
index 0000000000..e6d942b962
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/underline_with_timestamp.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><u>This is a test subtitle</u><00:00.001>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/very_long_cue.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/very_long_cue.vtt
new file mode 100644
index 0000000000..fa1aad85c5
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/very_long_cue.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000 size:50%
+This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen. This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen. This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen. This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen. This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen. This is a test subtitle that should wrap several times and become so long that exceeds the video rendering area. In this situation, the cue won't be showed in the screen.
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_long.vtt
new file mode 100644
index 0000000000..1a443df099
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:50%
+<v foo>This is a test subtitle that most likely will span over several rows since it's a pretty long cue with a lot of text.</v>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_2_timestamps.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_2_timestamps.vtt
new file mode 100644
index 0000000000..b5d2089fb6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_2_timestamps.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><v>This is a </v><00:05.000><v>test subtitle</v>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_timestamp.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_timestamp.vtt
new file mode 100644
index 0000000000..99f4937705
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/voice_with_timestamp.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:10.000
+<00:00.000><v>This is a test subtitle</v><00:00.001>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces.vtt
new file mode 100644
index 0000000000..99b772ffd9
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000
+A A A A A A
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long.vtt
new file mode 100644
index 0000000000..5352212393
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:40%
+A A A A A A A A A A A
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long_size_20.vtt b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long_size_20.vtt
new file mode 100644
index 0000000000..7807ca32a2
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/support/white-spaces_long_size_20.vtt
@@ -0,0 +1,4 @@
+WEBVTT
+
+00:00:00.000 --> 00:00:05.000 size:20%
+A A A A A A A A A A A
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues-ref.html
new file mode 100644
index 0000000000..f3ba001630
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, too many cues - cues that cannot fit should not be shown</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video">
+ <span class="cue">
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ </span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues.html
new file mode 100644
index 0000000000..724581fa50
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, too many cues - cues that cannot fit should not be shown</title>
+<link rel="match" href="too_many_cues-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/too_many_cues.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped-ref.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped-ref.html
new file mode 100644
index 0000000000..24bc5271d8
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped-ref.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<title>Reference for WebVTT rendering, too many cues (wrapped) - cues that cannot fit should not be shown</title>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+.video {
+ display: inline-block;
+ width: 320px;
+ height: 180px;
+ position: relative;
+}
+.cue {
+ position: absolute;
+ bottom: 0;
+ left: 0;
+ right: 0;
+ text-align: center;
+ font: 20px/1 Ahem;
+}
+.cueText {
+ background: rgba(0,0,0,0.8);
+ color: green;
+}
+</style>
+<div class="video">
+ <span class="cue">
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ <div><span class="cueText">This is a test</span></div>
+ </span>
+</div>
diff --git a/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped.html b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped.html
new file mode 100644
index 0000000000..5d3a5cc6f6
--- /dev/null
+++ b/testing/web-platform/tests/webvtt/rendering/cues-with-video/processing-model/too_many_cues_wrapped.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>WebVTT rendering, too many cues (wrapped) - cues that cannot fit should not be shown</title>
+<link rel="match" href="too_many_cues_wrapped-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+html { overflow:hidden }
+body { margin:0 }
+::cue {
+ font: 20px/1 Ahem;
+ color: green
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<video width="320" height="180" autoplay onplaying="this.onplaying = null; this.pause(); takeScreenshot();">
+ <source src="/media/white.webm" type="video/webm">
+ <source src="/media/white.mp4" type="video/mp4">
+ <track src="support/too_many_cues_wrapped.vtt">
+ <script>
+ document.getElementsByTagName('track')[0].track.mode = 'showing';
+ </script>
+</video>
+</html>