From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../visufx/animation/visibility-interpolation.html |  70 ++++++++++++++++++++
 .../tests/css/CSS2/visufx/clip-001.xht             |  64 ++++++++++++++++++
 .../tests/css/CSS2/visufx/clip-004.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-005.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-006.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-007.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-008.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-016.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-017.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-018.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-019.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-020.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-028.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-029.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-030.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-031.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-032.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-040.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-041.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-042.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-043.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-044.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-052.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-053.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-054.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-055.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-056.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-064.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-065.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-066.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-067.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-068.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-076.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-077.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-078.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-079.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-080.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-088.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-089.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-090.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-091.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-092.xht             |  28 ++++++++
 .../tests/css/CSS2/visufx/clip-097.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-098.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-099.xht             |  25 +++++++
 .../tests/css/CSS2/visufx/clip-100.xht             |  33 ++++++++++
 .../tests/css/CSS2/visufx/clip-101.xht             |  33 ++++++++++
 .../tests/css/CSS2/visufx/clip-102.xht             |  31 +++++++++
 .../tests/css/CSS2/visufx/clip-inherit-001.xht     |  38 +++++++++++
 .../css/CSS2/visufx/clip-non-absolute-001.xht      |  20 ++++++
 .../tests/css/CSS2/visufx/clip-rect-001.xht        |  35 ++++++++++
 .../tests/css/CSS2/visufx/clip-shape-001.xht       |  20 ++++++
 .../tests/css/CSS2/visufx/clipping-001.xht         |  33 ++++++++++
 .../tests/css/CSS2/visufx/clipping-002.xht         |  33 ++++++++++
 .../tests/css/CSS2/visufx/clipping-003.xht         |  43 ++++++++++++
 .../tests/css/CSS2/visufx/clipping-004.xht         |  42 ++++++++++++
 .../tests/css/CSS2/visufx/clipping-005.xht         |  42 ++++++++++++
 .../tests/css/CSS2/visufx/clipping-006.xht         |  48 ++++++++++++++
 .../tests/css/CSS2/visufx/clipping-007.xht         |  53 +++++++++++++++
 .../tests/css/CSS2/visufx/clipping-008.xht         |  56 ++++++++++++++++
 .../tests/css/CSS2/visufx/clipping-009.xht         |  40 ++++++++++++
 .../tests/css/CSS2/visufx/clipping-010.xht         |  41 ++++++++++++
 .../tests/css/CSS2/visufx/clipping-011.xht         |  46 +++++++++++++
 .../tests/css/CSS2/visufx/clipping-012.xht         |  46 +++++++++++++
 .../tests/css/CSS2/visufx/clipping-013.xht         |  36 +++++++++++
 .../tests/css/CSS2/visufx/clipping-014.xht         |  44 +++++++++++++
 .../tests/css/CSS2/visufx/clipping-015.xht         |  49 ++++++++++++++
 .../tests/css/CSS2/visufx/clipping-016.xht         |  23 +++++++
 .../tests/css/CSS2/visufx/clipping-017.xht         |  49 ++++++++++++++
 .../tests/css/CSS2/visufx/clipping-README          |   7 ++
 .../tests/css/CSS2/visufx/overflow-006.xht         |  25 +++++++
 .../tests/css/CSS2/visufx/overflow-007.xht         |  24 +++++++
 .../tests/css/CSS2/visufx/overflow-008.xht         |  24 +++++++
 .../tests/css/CSS2/visufx/overflow-009.html        |  68 +++++++++++++++++++
 .../CSS2/visufx/overflow-applies-to-001-ref.xht    |  54 ++++++++++++++++
 .../css/CSS2/visufx/overflow-applies-to-001.xht    |  72 +++++++++++++++++++++
 .../css/CSS2/visufx/overflow-propagation-001a.html |   9 +++
 .../css/CSS2/visufx/overflow-propagation-001b.html |  14 ++++
 .../css/CSS2/visufx/overflow-propagation-001c.html |  16 +++++
 .../tests/css/CSS2/visufx/shape-spaces-001.xht     |  26 ++++++++
 .../tests/css/CSS2/visufx/support/1x1-green.png    | Bin 0 -> 135 bytes
 .../tests/css/CSS2/visufx/support/60x60-gg-rr.png  | Bin 0 -> 224 bytes
 .../support/overflow-propagation-001-ref.html      |   7 ++
 .../tests/css/CSS2/visufx/visibility-001.xht       |  37 +++++++++++
 .../tests/css/CSS2/visufx/visibility-002.xht       |  36 +++++++++++
 .../tests/css/CSS2/visufx/visibility-003.xht       |  23 +++++++
 .../tests/css/CSS2/visufx/visibility-004.xht       |  42 ++++++++++++
 .../tests/css/CSS2/visufx/visibility-005.xht       |  45 +++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-001.xht  |  51 +++++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-002.xht  |  51 +++++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-003.xht  |  51 +++++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-004.xht  |  45 +++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-005.xht  |  50 ++++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-006.xht  |  50 ++++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-007.xht  |  45 +++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-008.xht  |  30 +++++++++
 .../css/CSS2/visufx/visibility-applies-to-009.xht  |  34 ++++++++++
 .../css/CSS2/visufx/visibility-applies-to-010.xht  |  37 +++++++++++
 .../css/CSS2/visufx/visibility-applies-to-012.xht  |  32 +++++++++
 .../css/CSS2/visufx/visibility-applies-to-013.xht  |  45 +++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-014.xht  |  45 +++++++++++++
 .../css/CSS2/visufx/visibility-applies-to-015.xht  |  51 +++++++++++++++
 .../tests/css/CSS2/visufx/visibility-block-001.xht |  21 ++++++
 .../css/CSS2/visufx/visibility-collapse-001.xht    |  56 ++++++++++++++++
 .../css/CSS2/visufx/visibility-descendants-001.xht |  34 ++++++++++
 .../css/CSS2/visufx/visibility-layout-001.xht      |  35 ++++++++++
 106 files changed, 3465 insertions(+)
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/animation/visibility-interpolation.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-004.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-005.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-006.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-007.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-008.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-016.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-017.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-018.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-019.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-020.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-028.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-029.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-030.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-031.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-032.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-040.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-041.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-042.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-043.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-044.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-052.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-053.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-054.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-055.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-056.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-064.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-065.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-066.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-067.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-068.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-076.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-077.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-078.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-079.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-080.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-088.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-089.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-090.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-091.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-092.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-097.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-098.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-099.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-100.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-101.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-102.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-inherit-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-non-absolute-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-rect-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clip-shape-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-002.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-003.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-004.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-005.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-006.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-007.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-008.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-009.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-010.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-011.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-012.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-013.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-014.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-015.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-016.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-017.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/clipping-README
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-006.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-007.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-008.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-009.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001-ref.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001a.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001b.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001c.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/shape-spaces-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/support/1x1-green.png
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/support/60x60-gg-rr.png
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/support/overflow-propagation-001-ref.html
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-002.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-003.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-004.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-005.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-002.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-003.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-004.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-005.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-006.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-007.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-008.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-009.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-010.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-012.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-013.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-014.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-015.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-block-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-collapse-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-descendants-001.xht
 create mode 100644 testing/web-platform/tests/css/CSS2/visufx/visibility-layout-001.xht

(limited to 'testing/web-platform/tests/css/CSS2/visufx')

diff --git a/testing/web-platform/tests/css/CSS2/visufx/animation/visibility-interpolation.html b/testing/web-platform/tests/css/CSS2/visufx/animation/visibility-interpolation.html
new file mode 100644
index 0000000000..683b393a9c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/animation/visibility-interpolation.html
@@ -0,0 +1,70 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>visibility interpolation</title>
+<link rel="help" href="https://www.w3.org/TR/CSS2/visufx.html#visibility">
+<meta name="assert" content="visibility supports">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<body>
+<script>
+test_interpolation({
+  property: 'visibility',
+  from: 'visible',
+  to: 'visible'
+}, [
+  {at: -1, expect: 'visible'},
+  {at: 0, expect: 'visible'},
+  {at: 0.5, expect: 'visible'},
+  {at: 1, expect: 'visible'},
+  {at: 1.5, expect: 'visible'},
+]);
+
+test_interpolation({
+  property: 'visibility',
+  from: 'visible',
+  to: 'hidden'
+}, [
+  {at: -1, expect: 'visible'},
+  {at: 0, expect: 'visible'},
+  {at: 0.1, expect: 'visible'},
+  {at: 0.9, expect: 'visible'},
+  {at: 1, expect: 'hidden'},
+  {at: 1.5, expect: 'hidden'},
+]);
+
+test_interpolation({
+  property: 'visibility',
+  from: 'hidden',
+  to: 'visible'
+}, [
+  {at: -1, expect: 'hidden'},
+  {at: 0, expect: 'hidden'},
+  {at: 0.1, expect: 'visible'},
+  {at: 0.9, expect: 'visible'},
+  {at: 1, expect: 'visible'},
+  {at: 1.5, expect: 'visible'},
+]);
+
+test_interpolation({
+  property: 'visibility',
+  from: 'collapse',
+  to: 'visible'
+}, [
+  {at: -1, expect: 'collapse'},
+  {at: 0, expect: 'collapse'},
+  {at: 0.1, expect: 'visible'},
+  {at: 0.9, expect: 'visible'},
+  {at: 1, expect: 'visible'},
+  {at: 1.5, expect: 'visible'},
+]);
+
+test_no_interpolation({
+  property: 'visibility',
+  from: 'collapse',
+  to: 'hidden'
+});
+</script>
+</body>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-001.xht
new file mode 100644
index 0000000000..0c1b9a08e0
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-001.xht
@@ -0,0 +1,64 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+ <head>
+
+  <title>CSS Test: clip - auto value</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+  <link rel="author" title="Vasil Dinkov" href="http://www.vadikom.com/" />
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+  <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+
+  <meta content="dom" name="flags" />
+  <meta content="An element must not clip when clip is set to auto." name="assert" />
+  <meta http-equiv="Content-Script-Type" content="text/javascript" />
+
+  <style type="text/css"><![CDATA[
+  #red-overlapped-layer
+  {
+  background-color: red;
+  height: 100px;
+  position: absolute;
+  width: 100px;
+  }
+
+  #red-parent
+  {
+  background-color: red;
+  clip: rect(0, 1px, 1px, 0);
+  height: 2px;
+  position: absolute;
+  width: 2px;
+  }
+
+  #green-child
+  {
+  background-color: green;
+  height: 100px;
+  width: 100px;
+  }
+  ]]></style>
+
+  <script type="text/javascript"><![CDATA[
+  function startTest()
+  {
+  document.getElementById("red-parent").style.clip = "auto";
+  }
+  ]]></script>
+
+ </head>
+
+ <body onload="startTest();">
+
+  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+  <div id="red-overlapped-layer"></div>
+
+  <div id="red-parent">
+      <div id="green-child"></div>
+  </div>
+
+ </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-004.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-004.xht
new file mode 100644
index 0000000000..ac9d3cc5a0
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-004.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using pixels with a negative zero value, -0px</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in pixels, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0px, -0px, -0px, -0px);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-005.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-005.xht
new file mode 100644
index 0000000000..fbe4b45612
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-005.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using pixels with a zero value, 0px</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in pixels, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0px, 0px, 0px, 0px);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-006.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-006.xht
new file mode 100644
index 0000000000..7e3e89c817
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-006.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using pixels with a zero value, +0px</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in pixels, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0px, +0px, +0px, +0px);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-007.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-007.xht
new file mode 100644
index 0000000000..e3f7f92206
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-007.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using pixels with a nominal value, 96px</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of ninety-six pixels, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(96px, 96px, 96px, 96px);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-008.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-008.xht
new file mode 100644
index 0000000000..a6b88263bc
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-008.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using pixels with a positive nominal value, +96px</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of ninety-six pixels, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+96px, +96px, +96px, +96px);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-016.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-016.xht
new file mode 100644
index 0000000000..d53a95f538
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-016.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using points with a negative zero value, -0pt</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in points, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0pt, -0pt, -0pt, -0pt);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-017.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-017.xht
new file mode 100644
index 0000000000..4b390046b3
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-017.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using points with a zero value, 0pt</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in points, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0pt, 0pt, 0pt, 0pt);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-018.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-018.xht
new file mode 100644
index 0000000000..9f9b379eb2
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-018.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using points with a zero value, +0pt</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in points, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0pt, +0pt, +0pt, +0pt);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-019.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-019.xht
new file mode 100644
index 0000000000..2aad6d08b5
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-019.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using points with a nominal value, 72pt</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a of seventy-two points for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(72pt, 72pt, 72pt, 72pt);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-020.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-020.xht
new file mode 100644
index 0000000000..d7fc41eb1c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-020.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using points with a positive nominal value, +72pt</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a of seventy-two points for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+72pt, +72pt, +72pt, +72pt);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-028.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-028.xht
new file mode 100644
index 0000000000..518400140e
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-028.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using picas with a negative zero value, -0pc</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in picas, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0pc, -0pc, -0pc, -0pc);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-029.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-029.xht
new file mode 100644
index 0000000000..4bd852ceff
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-029.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using picas with a zero value, 0pc</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in picas, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0pc, 0pc, 0pc, 0pc);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-030.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-030.xht
new file mode 100644
index 0000000000..413b344cca
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-030.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using picas with a zero value, +0pc</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in picas, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0pc, +0pc, +0pc, +0pc);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-031.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-031.xht
new file mode 100644
index 0000000000..4d49739226
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-031.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using picas with a nominal value, 6pc</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a of six picas for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(6pc, 6pc, 6pc, 6pc);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-032.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-032.xht
new file mode 100644
index 0000000000..22677f35cb
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-032.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using picas with a positive nominal value, +6pc</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a of six picas for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+6pc, +6pc, +6pc, +6pc);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-040.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-040.xht
new file mode 100644
index 0000000000..038bf639b8
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-040.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using centimeters with a negative zero value, -0cm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in centimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0cm, -0cm, -0cm, -0cm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-041.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-041.xht
new file mode 100644
index 0000000000..61a9d0fd9b
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-041.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using centimeters with a zero value, 0cm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in centimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0cm, 0cm, 0cm, 0cm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-042.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-042.xht
new file mode 100644
index 0000000000..46b70fadca
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-042.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using centimeters with a zero value, +0cm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in centimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0cm, +0cm, +0cm, +0cm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-043.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-043.xht
new file mode 100644
index 0000000000..8d6c46b32c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-043.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using centimeters with a nominal value, 2.54cm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of 2.54 centimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(2.54cm, 2.54cm, 2.54cm, 2.54cm);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-044.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-044.xht
new file mode 100644
index 0000000000..3d871b72e0
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-044.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using centimeters with a positive nominal value, +2.54cm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of 2.54 centimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+2.54cm, +2.54cm, +2.54cm, +2.54cm);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-052.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-052.xht
new file mode 100644
index 0000000000..351aa81afc
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-052.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using millimeters with a negative zero value, -0mm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in millimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0mm, -0mm, -0mm, -0mm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-053.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-053.xht
new file mode 100644
index 0000000000..e8301d10d8
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-053.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using millimeters with a zero value, 0mm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in millimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0mm, 0mm, 0mm, 0mm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-054.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-054.xht
new file mode 100644
index 0000000000..f16375a99e
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-054.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using millimeters with a zero value, +0mm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in millimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0mm, +0mm, +0mm, +0mm);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-055.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-055.xht
new file mode 100644
index 0000000000..c42933e081
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-055.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using millimeters with a nominal value, 25.4mm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of 25.4 millimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(25.4mm, 25.4mm, 25.4mm, 25.4mm);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-056.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-056.xht
new file mode 100644
index 0000000000..64ff07ab23
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-056.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using millimeters with a positive nominal value, +25.4mm</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value of 25.4 millimeters, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+25.4mm, +25.4mm, +25.4mm, +25.4mm);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-064.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-064.xht
new file mode 100644
index 0000000000..1bab7064fe
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-064.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using inches with a negative zero value, -0in</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in inches, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0in, -0in, -0in, -0in);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-065.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-065.xht
new file mode 100644
index 0000000000..970bd3582d
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-065.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using inches with a zero value, 0in</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in inches, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0in, 0in, 0in, 0in);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-066.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-066.xht
new file mode 100644
index 0000000000..9d44330cc4
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-066.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using inches with a zero value, +0in</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value, in inches, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0in, +0in, +0in, +0in);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-067.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-067.xht
new file mode 100644
index 0000000000..817f3b4a67
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-067.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using inches with a nominal value, 1in</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value, in inches, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(1in, 1in, 1in, 1in);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-068.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-068.xht
new file mode 100644
index 0000000000..55dbe85dbd
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-068.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using inches with a positive nominal value, +96in</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a value, in inches, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+96in, +96in, +96in, +96in);
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-076.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-076.xht
new file mode 100644
index 0000000000..176df20f9b
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-076.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'em' units with a negative zero value, -0em</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in 'em' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0em, -0em, -0em, -0em);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-077.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-077.xht
new file mode 100644
index 0000000000..a85621e1d4
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-077.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'em' units with a zero value, 0em</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a zero value, in 'em' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0em, 0em, 0em, 0em);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-078.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-078.xht
new file mode 100644
index 0000000000..e21f74a8a2
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-078.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'em' units with a positive zero value, +0em</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a positive zero value, in 'em' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0em, +0em, +0em, +0em);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-079.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-079.xht
new file mode 100644
index 0000000000..866f0b87a7
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-079.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'em' units with a nominal value, 6em</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a value, in 'em' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(6em, 6em, 6em, 6em);
+                font: 20px/1 Ahem;
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-080.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-080.xht
new file mode 100644
index 0000000000..3685000a49
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-080.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'em' units with a positive nominal value, +6em</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a value, in 'em' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+6em, +6em, +6em, +6em);
+                font: 20px/1 Ahem;
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-088.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-088.xht
new file mode 100644
index 0000000000..c5dd51ecff
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-088.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'ex' units with a negative zero value, -0ex</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a negative zero value, in 'ex' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0ex, -0ex, -0ex, -0ex);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-089.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-089.xht
new file mode 100644
index 0000000000..5def0b9a3c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-089.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'ex' units with a zero value, 0ex</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a zero value, in 'ex' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0ex, 0ex, 0ex, 0ex);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-090.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-090.xht
new file mode 100644
index 0000000000..c9b8b44402
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-090.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'ex' units with a positive zero value, +0ex</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a positive zero value, in 'ex' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0ex, +0ex, +0ex, +0ex);
+                font: 20px/1 Ahem;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-091.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-091.xht
new file mode 100644
index 0000000000..afb687df52
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-091.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'ex' units with a nominal value, 7.5ex</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a value, in 'ex' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(7.5ex, 7.5ex, 7.5ex, 7.5ex);
+                font: 20px/1 Ahem;
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-092.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-092.xht
new file mode 100644
index 0000000000..10377c0ded
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-092.xht
@@ -0,0 +1,28 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using 'ex' units with a positive nominal value, +7.5ex</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="flags" content="ahem" />
+        <meta name="assert" content="The 'clip' property sets a value, in 'ex' units, for all sides of the clipping rectangle." />
+        <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+7.5ex, +7.5ex, +7.5ex, +7.5ex);
+                font: 20px/1 Ahem;
+                height: 3in;
+                position: absolute;
+                width: 3in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-097.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-097.xht
new file mode 100644
index 0000000000..ac547dafb7
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-097.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with a negative zero value with no units, -0</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a negative zero value and no units, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(-0, -0, -0, -0);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-098.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-098.xht
new file mode 100644
index 0000000000..58fab32a23
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-098.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with a zero value with no units, 0</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a zero value and no units, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(0, 0, 0, 0);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-099.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-099.xht
new file mode 100644
index 0000000000..5c0e77bc28
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-099.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with a positive zero value with no units, +0</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property sets a positive zero value and no units, for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                background: red;
+                clip: rect(+0, +0, +0, +0);
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-100.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-100.xht
new file mode 100644
index 0000000000..b8ec413d99
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-100.xht
@@ -0,0 +1,33 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip using the 'rect()' function and specifying all values as 'auto'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <meta name="assert" content="The 'clip' property sets an 'auto' value for all sides of the clipping rectangle." />
+        <style type="text/css">
+            div
+            {
+                height: 1in;
+                width: 1in;
+            }
+            #div1
+            {
+                background: red;
+            }
+            div div
+            {
+                background: green;
+                clip: rect(auto, auto, auto, auto);
+                position: absolute;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is a green box visible and there is no red visible on the page.</p>
+        <div id="div1">
+            <div></div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-101.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-101.xht
new file mode 100644
index 0000000000..07787fcb13
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-101.xht
@@ -0,0 +1,33 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip specifying only the value 'auto'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <meta name="assert" content="The 'clip' properly applies the value of 'auto'." />
+        <style type="text/css">
+            div
+            {
+                height: 1in;
+                width: 1in;
+            }
+            #div1
+            {
+                background: red;
+            }
+            #div2
+            {
+                background: green;
+                clip: auto;
+                position: absolute;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is a green box visible and there is no red visible on the page.</p>
+        <div id="div1">
+            <div id="div2"></div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-102.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-102.xht
new file mode 100644
index 0000000000..4cb0dbe7a6
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-102.xht
@@ -0,0 +1,31 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with the value 'inherit'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-clip" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'clip' property set to 'inherit' properly inherits the appropriate value for the parent element." />
+        <style type="text/css">
+            #div1
+            {
+                clip: rect(0, 0, 0, 0);
+            }
+            #div2
+            {
+                background: red;
+                clip: inherit;
+                height: 1in;
+                position: absolute;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div id="div1">
+            <div id="div2"></div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-inherit-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-inherit-001.xht
new file mode 100644
index 0000000000..9e8c6fd188
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-inherit-001.xht
@@ -0,0 +1,38 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: clip: Inheriting 'auto' arguments of rect()</title>
+  <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu"/>
+  <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping"/>
+  <meta name="assert" content="The 'auto' keywords in rect() resolve to a
+        used (not computed) value that aligns them with the border edges."/>
+  <style type="text/css">
+     .container {
+        position: relative;
+        width: 100px; height: 100px;
+        background: red; }
+     #outer {
+        position: absolute;
+        top: 50px; left: 50px;
+        clip: rect(-50px, auto, auto, -50px);
+        height: 40px; width: 40px;
+        border: solid 5px transparent; }
+     #inner {
+        position: absolute;
+        top: -55px; left: -55px;
+        width: 60px; height: 60px;
+        border: solid 20px green;
+        background: green; clip: inherit; }
+  </style>
+
+ </head>
+ <body>
+    <p>There must be a green box below and no red.</p>
+    <div class="container">
+      <div id="outer">
+        <div id="inner"></div>
+      </div>
+    </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-non-absolute-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-non-absolute-001.xht
new file mode 100644
index 0000000000..b78039ba69
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-non-absolute-001.xht
@@ -0,0 +1,20 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip on non-positioned element</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <meta name="assert" content="Clip does not apply to non-positioned elements." />
+        <style type="text/css">
+            div
+            {
+                clip: rect(10px, 25px, 50px, 10px);
+                color: green;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there are the words "Filler Text" below.</p>
+        <div>Filler Text</div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-rect-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-rect-001.xht
new file mode 100644
index 0000000000..e342d29109
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-rect-001.xht
@@ -0,0 +1,35 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: clip: Missing commas in rect()</title>
+  <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping"/>
+  <meta name="flags" content="invalid may"/>
+  <meta name="assert" content="User agents may support separation of values
+    within rect() by whitespace instead of commas, but not a combination of
+    whitespace and commas."/>
+  <style type="text/css">
+    div {
+      background: red;
+      width: 100px; height: 100px;
+    }
+    .inner {
+      position: absolute;
+      background: green;
+      clip: rect(0,0,0,0);
+      clip: rect( 0 auto auto 0 );
+      clip: rect(0,0 0,0);
+      clip: rect(0 0,0,0);
+      clip: rect(0,0,0 0);
+      clip: rect(0 0,0 0);
+    }
+  </style>
+
+ </head>
+ <body>
+    <p>There must be a green box below and no red.</p>
+    <div class="outer">
+      <div class="inner"></div>
+    </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clip-shape-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clip-shape-001.xht
new file mode 100644
index 0000000000..6199dc0c68
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clip-shape-001.xht
@@ -0,0 +1,20 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with other invalid shape</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <meta name="assert" content="A shape value other than 'rect()' is not supported." />
+        <style type="text/css">
+            div
+            {
+                clip: circle(10px, 25px);
+                position: absolute;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there are the words "Filler Text" below.</p>
+        <div>Filler Text</div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-001.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-001.xht
new file mode 100644
index 0000000000..a493e53a57
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-001.xht
@@ -0,0 +1,33 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: 'clip': Basic Test</title>
+  <link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/clipping/001.html" type="text/html"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 200px;
+  height: 200px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  background-color: red;
+}
+
+.clip {
+  position: absolute;
+  clip: rect(100px, 200px, 200px, 100px);
+}
+</style>
+</head>
+<body>
+
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<div class="green clip"><div class="red"></div></div></body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-002.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-002.xht
new file mode 100644
index 0000000000..e7507328d5
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-002.xht
@@ -0,0 +1,33 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: 'overflow': Basic Test</title>
+  <link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/clipping/002.html" type="text/html"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  background-color: red;
+  margin-top:100px;
+}
+
+.overflow {
+  overflow: hidden;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<div class="green overflow"><div class="red"></div></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-003.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-003.xht
new file mode 100644
index 0000000000..a687c142dd
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-003.xht
@@ -0,0 +1,43 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+  width: 100px;
+  height: 100px;
+}
+
+.positioned {
+  position: absolute;
+  left:150px;
+  top: 100px;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<div class="overflow">
+<div class="red"></div>
+<div class="green positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-004.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-004.xht
new file mode 100644
index 0000000000..3a5209e40a
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-004.xht
@@ -0,0 +1,42 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+.positioned {
+  position: absolute;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure overflow is done using a containing
+block model. -->
+
+<div class="overflow green positioned">
+<div class="red"></div>
+<div class="red positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-005.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-005.xht
new file mode 100644
index 0000000000..abc8d243dd
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-005.xht
@@ -0,0 +1,42 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+.positioned {
+  position: relative;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure overflow is done using a containing
+block model. -->
+
+<div class="overflow green positioned">
+<div class="red"></div>
+<div class="red positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-006.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-006.xht
new file mode 100644
index 0000000000..9b292b2fdc
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-006.xht
@@ -0,0 +1,48 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+  left: 100px;
+  top: 70px;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+  width: 100px;
+  height: 100px;
+}
+
+.positioned {
+  position: fixed;
+}
+</style>
+</head>
+<body>
+
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!--  This test is checking to make sure overflow is done using a containing
+block model, and that a fixed positioned element inside another fixed positioned
+element is not considered overflow. -->
+
+<div class="overflow positioned">
+<div class="red"></div>
+<div class="green positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-007.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-007.xht
new file mode 100644
index 0000000000..24905ec930
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-007.xht
@@ -0,0 +1,53 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<style type="text/css">
+div {
+  width: 100px;
+  height: 100px;
+}
+
+.green {
+  background-color: green;
+}
+
+.red {
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+.positioned {
+  position: absolute;
+}
+
+.fixed {
+  position: fixed;
+  left: 100px;
+  top: 100px;
+}
+
+.offset {
+  left: 100px;
+  top: 100px;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+<!-- This test is checking to make sure overflow is done using a containing
+block model, and that a fixed positioned element inside an absolute positioned
+element is not considered overflow. -->
+
+<div class="overflow positioned">
+  <div class="fixed">
+    <div class="offset green positioned"></div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-008.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-008.xht
new file mode 100644
index 0000000000..1598b2985e
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-008.xht
@@ -0,0 +1,56 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+div {
+  width: 100px;
+  height: 100px;
+}
+
+.green {
+  background-color: green;
+}
+
+.red {
+  background-color: red;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+.positioned {
+  position: absolute;
+}
+
+.fixed {
+  position: fixed;
+  left: 100px;
+  top: 100px;
+}
+
+.offset {
+  margin-left: 100px;
+  margin-top: 100px;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+ <!-- This test is checking to make sure overflow is done using a containing
+block model, and that a fixed positioned element inside an absolute positioned
+element is not considered overflow.  -->
+
+<div class="overflow positioned">
+  <div class="fixed">
+    <div class="offset green overflow"></div>
+  </div>
+</div>
+
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-009.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-009.xht
new file mode 100644
index 0000000000..0f19a2bba6
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-009.xht
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.clip {
+  clip: rect(0px 100px 100px 0px);
+}
+
+.positioned {
+  position: absolute;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure clip is applying to all descendants. -->
+
+<div class="clip green positioned">
+<div class="red"></div>
+<div class="red positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-010.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-010.xht
new file mode 100644
index 0000000000..329d63d33f
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-010.xht
@@ -0,0 +1,41 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.clip {
+  clip: rect(0px 100px 100px 0px);
+}
+
+.positioned {
+  position: fixed;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure clip is applying to all descendants. -->
+
+<div class="clip green positioned">
+<div class="red"></div>
+<div class="red positioned"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-011.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-011.xht
new file mode 100644
index 0000000000..51729a7cef
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-011.xht
@@ -0,0 +1,46 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.clip {
+  clip: rect(0px 100px 100px 0px);
+}
+
+.positioned {
+  position: fixed;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure clip is applying to all descendants. -->
+
+<div class="clip green positioned">
+<div class="red"></div>
+<div class="red overflow"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-012.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-012.xht
new file mode 100644
index 0000000000..6fd6a20fb3
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-012.xht
@@ -0,0 +1,46 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+}
+
+.red {
+  width: 100px;
+  height: 100px;
+  margin-top: 100px;
+  margin-left: 100px;
+  background-color: red;
+}
+
+.clip {
+  clip: rect(0px 100px 100px 0px);
+}
+
+.positioned {
+  position: absolute;
+}
+
+.overflow {
+  overflow: hidden;
+}
+
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+<!-- This test is checking to make sure clip is applying to all descendants. -->
+
+<div class="clip green positioned">
+<div class="red"></div>
+<div class="red overflow"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-013.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-013.xht
new file mode 100644
index 0000000000..008247f664
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-013.xht
@@ -0,0 +1,36 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 100px;
+  background-color: green;
+  border: 10px solid red;
+}
+
+.clip {
+  clip: rect(10px 110px 110px 10px);
+}
+
+.positioned {
+  position: absolute;
+}
+p
+{
+    height: 40px;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+<!-- This test is checking to make sure clip applies to the element itself
+and starts from the border edge. -->
+
+<div class="clip green positioned">
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-014.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-014.xht
new file mode 100644
index 0000000000..291d8ab315
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-014.xht
@@ -0,0 +1,44 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.green {
+  width: 100px;
+  height: 200px;
+  background-color: green;
+  border: 10px solid red;
+}
+
+.clip {
+  clip: rect(10px 110px 110px 10px);
+}
+
+.positioned {
+  position: absolute;
+  overflow: scroll;
+}
+
+.tall {
+  height: 1000px;
+}
+p
+{
+    height: 40px;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test is checking to make sure clip applies to the element itself,
+starts from the border edge, and clips out scrollbars.  The bottom
+of the scrolling mechanism should be clipped. -->
+
+<div class="clip green positioned">
+<div class="tall"></div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-015.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-015.xht
new file mode 100644
index 0000000000..f7bb82bc8d
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-015.xht
@@ -0,0 +1,49 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: CSS clipping test</title>
+<link rel="author" title="David Hyatt" href="mailto:hyatt@netscape.com"/>
+<link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+<style type="text/css">
+div {
+  width: 100px;
+  height: 100px;
+}
+
+.green {
+  background-color: green;
+}
+
+.red {
+  background-color: red;
+}
+
+.absolute {
+  position: absolute;
+  top:100px;
+  left:100px;
+}
+
+.relative {
+  position: relative;
+  top:100px;
+  left:100px;
+}
+
+.overflow {
+  overflow: hidden;
+}
+</style>
+</head>
+<body>
+<p>Test passes if there is <strong>a green square</strong> and <strong>no red</strong>.</p>
+
+<!-- This test makes sure overflow uses containing blocks when clipping. -->
+
+<div class="green overflow">
+  <div class="red relative">
+    <div class="absolute red"></div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-016.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-016.xht
new file mode 100644
index 0000000000..a72870d8bd
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-016.xht
@@ -0,0 +1,23 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>CSS Test: 'clip': Basic Test</title>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/clipping/016.html" type="text/html"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+<style type="text/css">
+.clip {
+  width: 60px;
+  height: 60px;
+  background: url(support/60x60-gg-rr.png) no-repeat red;
+  position: absolute;
+  clip: rect(0px, 60px, 30px, 0px);
+}
+</style>
+</head>
+<body>
+
+<p>Test passes if there is <strong>a green rectangle</strong> and <strong>no red</strong>.</p>
+
+<div class="clip"></div></body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-017.xht b/testing/web-platform/tests/css/CSS2/visufx/clipping-017.xht
new file mode 100644
index 0000000000..8bcdcff982
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-017.xht
@@ -0,0 +1,49 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
+ <head>
+  <!-- Based on http://www.brothercake.com/Ref/clip.html -->
+  <title>CSS Test: Convoluted clip() test</title>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/clipping/017.xml" type="application/xhtml+xml"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+  <style type="text/css">
+   #test-outer {
+      width: 150px; height: 150px; border: 20px solid lime; background-color: teal;
+      position: absolute; left: 60px; top: 60px; clip: rect(0px, 100px, 100px, 0px);
+   }
+   #test-middle {
+      width: 250px; height: 150px; border: 10px solid fuchsia; background-color: red;
+      position: absolute; left: 0px; top: 0px; clip: rect(0px, 50px, 50px, 0px);
+   }
+   #test-inner {
+      width: 150px; height: 250px; border: 10px solid aqua; background-color: yellow;
+   }
+   p { margin: 20px; font: 20px/1 serif; }
+   #control-outer {
+      width: 80px; height: 80px; border: 20px lime; border-style: solid none none solid; background: teal;
+      margin: 20px 0 0 200px;
+   }
+   #control-middle {
+      width: 40px; height: 40px; border: 10px fuchsia; border-style: solid none none solid; background: red;
+   }
+   #control-inner {
+      width: 30px; height: 30px; border: 10px aqua; border-style: solid none none solid; background: yellow;
+   }
+  </style>
+ </head>
+ <body>
+  <p>The following two pictograms should look identical.</p>
+  <div id="test-outer">
+   <div id="test-middle">
+    <div id="test-inner">
+    </div>
+   </div>
+  </div>
+  <div id="control-outer">
+   <div id="control-middle">
+    <div id="control-inner">
+    </div>
+   </div>
+  </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/clipping-README b/testing/web-platform/tests/css/CSS2/visufx/clipping-README
new file mode 100644
index 0000000000..a6072f592a
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/clipping-README
@@ -0,0 +1,7 @@
+Tests 001 to 015 courtesy of David Hyatt.
+Tests 003 to 015 need validating and correcting.
+
+See also:
+   ../absolute/overflow/
+   ../absolute/clip/
+   ../../overflow/
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-006.xht b/testing/web-platform/tests/css/CSS2/visufx/overflow-006.xht
new file mode 100644
index 0000000000..f00553c299
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-006.xht
@@ -0,0 +1,25 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: Floats and overflow</title>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/overflow/box/002.html" type="text/html"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+  <style type="text/css">
+   p { color: green; }
+   .container { border: solid white; position: relative; }
+   .overflow { overflow: auto; color: yellow; background: red; height: 0; }
+   .float { float: left; background: red; color: yellow; width: 10em; }
+   .pass { background: white; color: black; width: 10em; }
+   .fail { background: black; position: absolute; top: 1em; }
+  </style>
+ </head>
+ <body>
+  <p>It should say "PASS" below:</p>
+  <div class="container">
+   <div class="fail"> XXXX </div>
+   <div class="overflow"> <div class="float"> FAIL </div> FAIL </div>
+   <div class="pass"> PASS </div> <!-- the float should be contained inside the overflow block -->
+  </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-007.xht b/testing/web-platform/tests/css/CSS2/visufx/overflow-007.xht
new file mode 100644
index 0000000000..8bc0a881ec
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-007.xht
@@ -0,0 +1,24 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: margin and overflow</title>
+  <link rel="author" title="Eira Monstad" href="mailto:eiram@opera.com"/>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/overflow/box/003.html" type="text/html"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+  <meta name="flags" content="interact"/>
+  <style type="text/css">
+   div.outer { width: 10em; height: 5em; overflow: scroll;
+               background: navy; border: 1px solid blue; }
+   div.inner { margin: 3em 0 3em 0; background: white; }
+  </style>
+ </head>
+ <body>
+  <p>Scroll to see the instructions:</p>
+  <div class="outer">
+   <div class="inner">
+    You should see the same amount of blue above and below this text.
+   </div>
+  </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-008.xht b/testing/web-platform/tests/css/CSS2/visufx/overflow-008.xht
new file mode 100644
index 0000000000..ae48ce5691
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-008.xht
@@ -0,0 +1,24 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: margin and overflow</title>
+  <link rel="author" title="Eira Monstad" href="mailto:eiram@opera.com"/>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/overflow/box/004.html" type="text/html"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#overflow" />
+  <meta name="flags" content="interact"/>
+  <style type="text/css">
+   div.outer { width: 10em; height: 5em; overflow: auto;
+               background: navy; border: 1px solid blue; }
+   div.inner { margin: 3em 0 3em 0; background: white; }
+  </style>
+ </head>
+ <body>
+  <p>Scroll to see the instructions:</p>
+  <div class="outer">
+   <div class="inner">
+    You should see the same amount of blue above and below this text.
+   </div>
+  </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-009.html b/testing/web-platform/tests/css/CSS2/visufx/overflow-009.html
new file mode 100644
index 0000000000..c6bda8df8b
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-009.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>CSS Test (Overflow): body with overflow:hidden</title>
+  <link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
+  <link rel="help" href="https://www.w3.org/TR/CSS2/visufx.html#overflow">
+  <link rel="help" href="https://www.w3.org/TR/css-overflow-3/#overflow">
+  <link rel="help" href="https://drafts.csswg.org/css-overflow-4/#propdef-overflow">
+  <meta name="flags" content="interact">
+  <meta name="assert" content="position:fixed layer should not be able to cause scrolling of body styled as overflow:hidden">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <style>
+body {
+  /* what we're testing */
+  overflow: hidden;
+}
+h1 {
+  /* bottom of #overlay-inner */
+  position: absolute;
+  bottom: 0;
+  left: 0;
+}
+.margin-0 {
+  /* remove extra space */
+  margin: 0;
+}
+.tall {
+  height: 100vh;
+  width: 100%;
+}
+#bad {
+  background-color: red;
+}
+#overlay {
+  overflow: auto;
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+}
+#overlay-inner {
+  position: relative;/* needed for the h1 */
+  width: 60%;/* leave room for #bad to be visible */
+  height: 150vh;/* force scroll */
+  /* make this visually distinct */
+  background-color: blue;
+  color: white;
+}
+  </style>
+</head>
+<body class="margin-0">
+  <div id="overlay">
+    <div id="overlay-inner">
+      <ol class="margin-0">
+        <li>Scroll the blue square downward until you see the word "BOTTOM".</li>
+        <li>End your scrolling action/gesture. (e.g. Remove your finger from the touchscreen.)</li>
+        <li>Attempt to scroll the blue square further downward.</li>
+        <li>If you see any red, then the test result is FAILED. Otherwise, it is PASSED.</li>
+      </ol>
+      <h1 class="margin-0">BOTTOM</h1>
+    </div>
+  </div>
+  <div class="tall"></div>
+  <div id="bad" class="tall"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001-ref.xht b/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001-ref.xht
new file mode 100644
index 0000000000..a8c54ab6d6
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001-ref.xht
@@ -0,0 +1,54 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Reference File</title>
+  <link rel="author" title="Bert Bos" href="mailto:bert@w3.org" />
+
+  <style type="text/css">
+  #container {width: 20em; background: green; text-align: center;
+    line-height: 1.2em}
+
+  #child3 {display: inline}
+  #grandchild3 {width: 20em; height: 1.2em; background: green;
+    vertical-align: bottom}
+
+  #child4 {table-layout: fixed; width: 20em; border-collapse: collapse}
+  #grandchild4 {width: 20em}
+  </style>
+ </head>
+
+ <body>
+
+   <p>There should be no red.</p>
+
+   <div id="container">
+     <div id="child1">
+       <div id="grandchild1">
+	 Block 1
+       </div>
+     </div>
+
+     <div id="child2">
+       <div id="grandchild2">
+	 Block 2
+       </div>
+     </div>
+
+     <div id="child3">
+       <img id="grandchild3" src="support/1x1-green.png" alt="green" />
+     </div>
+
+     <table id="child4">
+       <tr>
+	 <td>
+	   <div id="grandchild4">
+	     Block 4a
+	   </div>
+	 </td>
+       </tr>
+       <tr><td>Block 4b</td></tr>
+     </table>
+   </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001.xht b/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001.xht
new file mode 100644
index 0000000000..e63bb0ee0c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-applies-to-001.xht
@@ -0,0 +1,72 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: What overflow applies to</title>
+
+  <link rel="help" href="http://www.w3.org/TR/CSS22/visufx.html#overflow" />
+  <link rel="help" href="http://www.w3.org/TR/CSS22/changes.html#s.11.1.1a" />
+  <link rel="match" href="overflow-applies-to-001-ref.xht" />
+  <meta name="assert" content="Name: overflow [...] Applies to:
+block containers and boxes that establish a formatting context" />
+  <link rel="author" title="Bert Bos" href="mailto:bert@w3.org" />
+
+  <style type="text/css">
+  #container {width: 20em; background: red; text-align: center;
+    line-height: 1.2em}
+
+  /* The visible overflow of grandchild1 hides the red container background */
+  #child1 {width: 10em; overflow: visible}
+  #grandchild1 {width: 20em; background: green}
+
+  /* The red border on grandchild2 is clipped by child2 */
+  #child2 {width: 20em; background: green; overflow: hidden}
+  #grandchild2 {width: 20em; border-right: solid 1em red}
+
+  /* Overflow (and width) don't apply to child3 and so grandchild3 is visible */
+  #child3 {display: inline; width: 10em; overflow: hidden; background: red}
+  #grandchild3 {width: 20em; height: 1.2em; background: red;
+    vertical-align: bottom}
+
+  /* Child4 establishes a formatting context and so can clip grandchild4 */
+  #child4 {table-layout: fixed; width: 20em; border-collapse: collapse;
+    background: green; overflow: hidden}
+  #grandchild4 {width: 20em; background: green; border-right: solid 1em red;
+    margin-right: -1em}
+  </style>
+ </head>
+
+ <body>
+
+   <p>There should be no red.</p>
+
+   <div id="container">
+     <div id="child1">
+       <div id="grandchild1">
+	 Block 1
+       </div>
+     </div>
+
+     <div id="child2">
+       <div id="grandchild2">
+	 Block 2
+       </div>
+     </div>
+
+     <div id="child3">
+       <img id="grandchild3" src="support/1x1-green.png" alt="Image download support must be enabled" />
+     </div>
+
+     <table id="child4">
+       <tr>
+	 <td>
+	   <div id="grandchild4">
+	     Block 4a
+	   </div>
+	 </td>
+       </tr>
+       <tr><td>Block 4b</td></tr>
+     </table>
+   </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001a.html b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001a.html
new file mode 100644
index 0000000000..77107d8faf
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001a.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Ensure that body propagates its scrollbars</title>
+<link rel=match href="support/overflow-propagation-001-ref.html">
+<link rel=help href="https://www.w3.org/TR/CSS21/visufx.html#overflow-clipping">
+<body style="overflow: hidden; margin: 100px; width: 100px; height: 100px; border: 1px solid green; position: absolute; top: 0; left: 0">
+  The body should have visible overflow of the text that totally doesn't fit
+  in the little box.
+</body>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001b.html b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001b.html
new file mode 100644
index 0000000000..c72994b8c4
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001b.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Ensure that body propagates its scrollbars</title>
+<link rel=match href="support/overflow-propagation-001-ref.html">
+<link rel=help href="https://www.w3.org/TR/CSS21/visufx.html#overflow-clipping">
+<script>
+  onload = function() {
+    document.body.remove();
+    var b = document.createElement("body");
+    b.style = "overflow: hidden; margin: 100px; width: 100px; height: 100px; border: 1px solid green; position: absolute; top: 0; left: 0";
+    b.textContent = "The body should have visible overflow of the text that totally doesn't fit in the little box.";
+    document.documentElement.appendChild(b);
+  }
+</script>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001c.html b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001c.html
new file mode 100644
index 0000000000..6956ff4143
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/overflow-propagation-001c.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Ensure that body propagates its scrollbars even if there is a preceding frameset</title>
+<link rel=match href="support/overflow-propagation-001-ref.html">
+<link rel=help href="https://www.w3.org/TR/CSS21/visufx.html#overflow-clipping">
+<script>
+  onload = function() {
+    document.body.remove();
+    var f = document.createElement("frameset");
+    document.documentElement.appendChild(f);
+    var b = document.createElement("body");
+    b.style = "overflow: hidden; margin: 100px; width: 100px; height: 100px; border: 1px solid green; position: absolute; top: 0; left: 0";
+    b.textContent = "The body should have visible overflow of the text that totally doesn't fit in the little box.";
+    document.documentElement.appendChild(b);
+  }
+</script>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/shape-spaces-001.xht b/testing/web-platform/tests/css/CSS2/visufx/shape-spaces-001.xht
new file mode 100644
index 0000000000..0c98112612
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/shape-spaces-001.xht
@@ -0,0 +1,26 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Clip with 'rect()' function values separated</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping" />
+        <meta name="flags" content="may" />
+        <meta name="assert" content="User agent may also support separation of the 'rect()' function values 'top', 'right', 'bottom', and 'left' with spaces." />
+        <style type="text/css">
+            div
+            {
+                border: 10px solid green;
+                background: red;
+                clip: rect(5px 50px 8px 0);
+                color: yellow;
+                height: 100px;
+                position: absolute;
+                width: 100px;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is a single horizontal green line below and no red visible on the page.</p>
+        <div>FAIL</div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/support/1x1-green.png b/testing/web-platform/tests/css/CSS2/visufx/support/1x1-green.png
new file mode 100644
index 0000000000..b98ca0ba0a
Binary files /dev/null and b/testing/web-platform/tests/css/CSS2/visufx/support/1x1-green.png differ
diff --git a/testing/web-platform/tests/css/CSS2/visufx/support/60x60-gg-rr.png b/testing/web-platform/tests/css/CSS2/visufx/support/60x60-gg-rr.png
new file mode 100644
index 0000000000..84f5b2a4f1
Binary files /dev/null and b/testing/web-platform/tests/css/CSS2/visufx/support/60x60-gg-rr.png differ
diff --git a/testing/web-platform/tests/css/CSS2/visufx/support/overflow-propagation-001-ref.html b/testing/web-platform/tests/css/CSS2/visufx/support/overflow-propagation-001-ref.html
new file mode 100644
index 0000000000..f0693fbea2
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/support/overflow-propagation-001-ref.html
@@ -0,0 +1,7 @@
+<!doctype html>
+<html style="overflow: hidden">
+<meta charset=utf-8>
+<body style="margin: 100px; width: 100px; height: 100px; border: 1px solid green; position: absolute; top: 0; left: 0">
+    The body should have visible overflow of the text that totally doesn't fit
+    in the little box.
+</body>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-001.xht
new file mode 100644
index 0000000000..da8eb98a82
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-001.xht
@@ -0,0 +1,37 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility set to 'collapse'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="A block with 'visibility' set to 'collapse' will not be rendered on the page but will still affect layout flow." />
+        <style type="text/css">
+            div
+            {
+                background: green;
+                width: 1in;
+            }
+            div div
+            {
+                height: 1in;
+            }
+            #div1
+            {
+                background: red;
+                visibility: collapse;
+            }
+            #div2
+            {
+                background: blue;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is a green box above a blue box below.</p>
+        <div>
+            <div id="div1">FAIL FAIL</div>
+            <div id="div2"></div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-002.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-002.xht
new file mode 100644
index 0000000000..64dfd1cdc2
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-002.xht
@@ -0,0 +1,36 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility set to 'hidden'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="A block with 'visibility' set to 'collapse' will not be rendered on the page but will still affect layout flow." />
+        <style type="text/css">
+            div
+            {
+                height: 1in;
+                width: 1in;
+            }
+            #div1
+            {
+                background: orange;
+            }
+            #div2
+            {
+                background: red;
+                visibility: hidden;
+            }
+            #div3
+            {
+                background: blue;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if the blue and orange boxes below are not touching and there is no red visible on the page.</p>
+        <div id="div1"></div>
+        <div id="div2">FAIL FAIL</div>
+        <div id="div3"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-003.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-003.xht
new file mode 100644
index 0000000000..39a0d344c3
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-003.xht
@@ -0,0 +1,23 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility set to 'visible'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="A block with 'visibility' set to 'visible' will be rendered on the page." />
+        <style type="text/css">
+            div
+            {
+                background: green;
+                height: 100px;
+                visibility: visible;
+                width: 100px;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is a box below this line.</p>
+        <div>PASS PASS</div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-004.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-004.xht
new file mode 100644
index 0000000000..4347328b0c
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-004.xht
@@ -0,0 +1,42 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility set to 'inherit'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="A block can inherit its 'visibility' behavior from its parent container." />
+        <style type="text/css">
+            div
+            {
+                height: 1in;
+                width: 1in;
+            }
+            #div1
+            {
+                background: orange;
+            }
+            #div2
+            {
+                visibility: hidden;
+            }
+            div div
+            {
+                background: red;
+                visibility: inherit;
+            }
+            #div3
+            {
+                background: blue;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if the blue and orange boxes below are not touching and there is no red visible on the page.</p>
+        <div id="div1"></div>
+        <div id="div2">
+            <div>FAIL FAIL</div>
+        </div>
+        <div id="div3"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-005.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-005.xht
new file mode 100644
index 0000000000..90e4d1868d
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-005.xht
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+ <head>
+
+  <title>CSS Test: visibility - descendants of a 'visibility: hidden' element</title>
+
+  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+  <link rel="help" href="http://www.w3.org/TR/CSS21/changes.html#q250" />
+  <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+
+  <meta name="flags" content="ahem" />
+  <meta name="assert" content="Descendants of a 'visibility: hidden' element will be visible if they have 'visibility: visible'" />
+
+  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+  <style type="text/css"><![CDATA[
+  div {visibility: hidden;}
+
+  span
+  {
+  color: red;
+  font: 100px/1 Ahem;
+  }
+
+  span#testpassed
+  {
+  color: green;
+  visibility: visible;
+  }
+  ]]></style>
+
+ </head>
+
+ <body>
+
+  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+  <div>
+      <span id="testpassed">X</span> <span>X</span>
+  </div>
+
+ </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-001.xht
new file mode 100644
index 0000000000..e8ec005f0a
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-001.xht
@@ -0,0 +1,51 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-row-group'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-row-group'." />
+        <style type="text/css">
+            #test
+            {
+                display: table-row-group;
+                visibility: hidden;
+            }
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="test">
+                <div id="row">
+                    <div id="cell"></div>
+                </div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-002.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-002.xht
new file mode 100644
index 0000000000..d219f99732
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-002.xht
@@ -0,0 +1,51 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-header-group'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-header-group'." />
+        <style type="text/css">
+            #test
+            {
+                display: table-header-group;
+                visibility: hidden;
+            }
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="test">
+                <div id="row">
+                    <div id="cell"></div>
+                </div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-003.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-003.xht
new file mode 100644
index 0000000000..67a0a4b5fc
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-003.xht
@@ -0,0 +1,51 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-footer-group'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-footer-group'." />
+        <style type="text/css">
+            #test
+            {
+                display: table-footer-group;
+                visibility: hidden;
+            }
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="test">
+                <div id="row">
+                    <div id="cell"></div>
+                </div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-004.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-004.xht
new file mode 100644
index 0000000000..63c359ca04
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-004.xht
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-row'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-row'." />
+        <style type="text/css">
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+                visibility: hidden;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-005.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-005.xht
new file mode 100644
index 0000000000..1d87d192a8
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-005.xht
@@ -0,0 +1,50 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-column-group'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-column-group'." />
+        <style type="text/css">
+            #test
+            {
+                display: table-column-group;
+                visibility: collapse;
+            }
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="test"></div>
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-006.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-006.xht
new file mode 100644
index 0000000000..1964f13508
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-006.xht
@@ -0,0 +1,50 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-column'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-column'." />
+        <style type="text/css">
+            #test
+            {
+                display: table-column;
+                visibility: collapse;
+            }
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="test"></div>
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-007.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-007.xht
new file mode 100644
index 0000000000..8e83b6cace
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-007.xht
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-cell'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-cell'." />
+        <style type="text/css">
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                visibility: hidden;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-008.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-008.xht
new file mode 100644
index 0000000000..894fbea046
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-008.xht
@@ -0,0 +1,30 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'inline'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'inline'." />
+        <style type="text/css">
+            #div1
+            {
+                background: red;
+                display: inline;
+                visibility: hidden;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="div1">Filler Text</div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-009.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-009.xht
new file mode 100644
index 0000000000..710a73b6fa
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-009.xht
@@ -0,0 +1,34 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'block'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'block'." />
+        <style type="text/css">
+            span
+            {
+                background: red;
+                display: block;
+                height: 1in;
+                visibility: hidden;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div>
+            <span></span>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-010.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-010.xht
new file mode 100644
index 0000000000..9985641317
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-010.xht
@@ -0,0 +1,37 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'list-item'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'list-item'." />
+        <style type="text/css">
+            div
+            {
+                margin-left: 2em;
+            }
+            #div1
+            {
+                background: red;
+                color: red;
+                display: list-item;
+                height: 1in;
+                visibility: hidden;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="div1"></div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-012.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-012.xht
new file mode 100644
index 0000000000..dd0efbc3aa
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-012.xht
@@ -0,0 +1,32 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'inline-block'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'inline-block'." />
+        <style type="text/css">
+            #div1
+            {
+                background: red;
+                display: inline-block;
+                height: 1in;
+                visibility: hidden;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="div1"></div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-013.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-013.xht
new file mode 100644
index 0000000000..f4d14e7df6
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-013.xht
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table'." />
+        <style type="text/css">
+            #table
+            {
+                display: table;
+                table-layout: fixed;
+                visibility: hidden;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-014.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-014.xht
new file mode 100644
index 0000000000..d44dd8e423
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-014.xht
@@ -0,0 +1,45 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'inline-table'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'inline-table'." />
+        <style type="text/css">
+            #table
+            {
+                display: inline-table;
+                table-layout: fixed;
+                visibility: hidden;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: red;
+                display: table-cell;
+                height: 1in;
+                width: 1in;
+            }
+            .box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div class="box"></div>
+        <div id="table">
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+        <div class="box"></div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-015.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-015.xht
new file mode 100644
index 0000000000..e84118f816
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-applies-to-015.xht
@@ -0,0 +1,51 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility applied to elements with 'display' set to 'table-caption'</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#propdef-visibility" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="The 'visibility' property applies to elements with 'display' set to 'table-caption'." />
+        <style type="text/css">
+            #table
+            {
+                display: table;
+            }
+            #caption
+            {
+                background: red;
+                visibility: hidden;
+                display: table-caption;
+                height: 1in;
+                width: 1in;
+            }
+            #row
+            {
+                display: table-row;
+            }
+            #cell
+            {
+                background: black;
+                display: table-cell;
+                height: 1em;
+                width: 1in;
+            }
+            #box
+            {
+                background: black;
+                height: 1em;
+                width: 1in;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is white space between the boxes below and there is no red visible on the page.</p>
+        <div id="box"></div>
+        <div id="table">
+            <div id="caption"></div>
+            <div id="row">
+                <div id="cell"></div>
+            </div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-block-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-block-001.xht
new file mode 100644
index 0000000000..945d85deaf
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-block-001.xht
@@ -0,0 +1,21 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Visibility 'collapse' on non-table row or column elements</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <link rel="match" href="../reference/no-red-on-blank-page-ref.xht"/>
+        <meta name="assert" content="The 'visibility' property set to 'collapse' acts like 'hidden' when applied to non-table row or column elements." />
+        <style type="text/css">
+            div
+            {
+                visibility: collapse;
+                color: red;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div>This test fails if this text is visible on the page.</div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-collapse-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-collapse-001.xht
new file mode 100644
index 0000000000..33ad2432ef
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-collapse-001.xht
@@ -0,0 +1,56 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+  <title>CSS Test: CSS Tables: Visibility</title>
+  <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
+  <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/table/011.xml" type="application/xhtml+xml"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#dynamic-effects"/>
+  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility"/>
+  <meta name="flags" content="dom interact"/>
+  <style type="text/css">
+   body { background: white; color: black; }
+   span[onclick] { text-decoration: underline; color: blue; cursor: pointer; }
+   span[onclick]:hover { color: red; }
+   .collapse { visibility: collapse; }
+   table { border-spacing: 1em; }
+  </style>
+  <script type="text/javascript">
+   function toggle(element) {
+     element = document.getElementById(element);
+     if (element.className == '') {
+       element.className = 'collapse';
+     } else {
+       element.className = '';
+     }
+   }
+  </script>
+ </head>
+ <body>
+  <p>Toggle: <span onclick="toggle('col2')">Column 2</span>
+             <span onclick="toggle('col3')">Column 3</span>
+             <span onclick="toggle('row2')">Row 2</span>
+             <span onclick="toggle('row3')">Row 3</span></p>
+  <p>When column 3 is collapsed, row 3 shouldn't move up. When row 2
+  is collapsed, column 3 shouldn't move left. However, when column 2
+  is collapsed, column 3 should move left, and when row 2 is
+  collapsed, row 3 should move up.</p>
+  <table>
+   <colgroup><col/><col id="col2"/><col id="col3"/></colgroup>
+   <tr>
+    <td/>
+    <th onclick="toggle('col2')">Column 2</th>
+    <th onclick="toggle('col3')">Column 3</th>
+   </tr>
+   <tr id="row2">
+    <th onclick="toggle('row2')">Row 2</th>
+    <td>Some really very long data</td>
+    <td>Some data<br/>on two lines</td>
+   </tr>
+   <tr id="row3">
+    <th onclick="toggle('row3')">Row 3</th>
+    <td>Data</td>
+    <td>Yet more data</td>
+   </tr>
+  </table>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-descendants-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-descendants-001.xht
new file mode 100644
index 0000000000..0d4a9bff59
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-descendants-001.xht
@@ -0,0 +1,34 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Descendents of hidden elements can specify a different visibility</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="Descendents of a hidden element will be visible if they have 'visibility' set to 'visible'." />
+        <style type="text/css">
+            #div1
+            {
+                border: 1px solid blue;
+            }
+            #div2
+            {
+                color: red;
+                visibility: hidden;
+            }
+            div div div
+            {
+                color: green;
+                visibility: visible;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if the content "Filler Text" is contained within the blue box and there is no red visible on the page.</p>
+        <div id="div1">
+            <div id="div2">
+                This test fails if this text is visible on the page.
+                <div>Filler Text</div>
+            </div>
+        </div>
+    </body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/css/CSS2/visufx/visibility-layout-001.xht b/testing/web-platform/tests/css/CSS2/visufx/visibility-layout-001.xht
new file mode 100644
index 0000000000..4ecdf7cf9a
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/visufx/visibility-layout-001.xht
@@ -0,0 +1,35 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Hidden elements still affect layout</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#visibility" />
+        <meta name="assert" content="Invisible boxes still affect layout." />
+        <style type="text/css">
+            div
+            {
+                height: 1in;
+                width: 1in;
+            }
+            #div1
+            {
+                background: orange;
+            }
+            #div2
+            {
+                background: red;
+                visibility: hidden;
+            }
+            #div3
+            {
+                background: blue;
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if the blue and orange boxes below are not touching and there is no red visible on the page.</p>
+        <div id="div1"></div>
+        <div id="div2">FAIL FAIL</div>
+        <div id="div3"></div>
+    </body>
+</html>
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