1 files changed, 46 insertions, 0 deletions
diff --git a/layout/reftests/async-scrolling/dynamic-toolbar-sticky-4c.html b/layout/reftests/async-scrolling/dynamic-toolbar-sticky-4c.html
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index 0000000000..0005b0471e
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+++ b/layout/reftests/async-scrolling/dynamic-toolbar-sticky-4c.html
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+<!DOCTYPE html>
+<html reftest-async-scroll
+      reftest-displayport-x="0" reftest-displayport-y="-1150"
+      reftest-displayport-w="800" reftest-displayport-h="2150"
+      reftest-async-scroll-x="0" reftest-async-scroll-y="-130">
+<meta name="viewport" content="width=device-width">
+<style>
+html, body {
+    margin: 0;
+    scrollbar-width: none;
+}
+.spacer {
+    height: 100vh;
+    background-color: green;
+}
+.sticky_bottom {
+    position: sticky;
+    bottom: 20px;
+    height: 50px;
+    background-color: blue;
+    opacity: 50%;
+}
+.sticky_both {
+    position: sticky;
+    top: 20px;
+    bottom: 20px;
+    height: 50px;
+    background-color: purple;
+    opacity: 50%;
+}
+.sticky_top {
+    position: sticky;
+    top: 20px;
+    height: 50px;
+    background-color: red;
+    opacity: 50%;
+}
+</style>
+<div class="spacer"></div>
+<div class="sticky_bottom"></div>
+<div class="sticky_both"></div>
+<div class="sticky_top"></div>
+<div class="spacer"></div>
+<script>
+document.scrollingElement.scrollTop = document.scrollingElement.scrollTopMax;
+</script>