64 lines
1.4 KiB
HTML
64 lines
1.4 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<title>Animating pseduo-element on scroller using named timeline</title>
|
|
</head>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="/web-animations/testcommon.js"></script>
|
|
<script src="./support/testcommon.js"></script>
|
|
<script src="testcommon.js"></script>
|
|
<style type="text/css">
|
|
.scroller {
|
|
overflow: scroll;
|
|
width: 100px;
|
|
height: 100px;
|
|
margin: 1em;
|
|
outline: 1px solid;
|
|
scroll-timeline: --t1 y;
|
|
}
|
|
.pseudo::before {
|
|
content: "";
|
|
display: block;
|
|
width: 50px;
|
|
height: 50px;
|
|
background: red;
|
|
animation: bg linear;
|
|
animation-timeline: --t1;
|
|
}
|
|
|
|
.content {
|
|
width: 200px;
|
|
height: 200px;
|
|
background-color: yellow;
|
|
}
|
|
@keyframes bg {
|
|
from {
|
|
background: rgb(0, 255, 0);
|
|
}
|
|
to {
|
|
background: rgb(0, 0, 255);
|
|
}
|
|
}
|
|
</style>
|
|
<body>
|
|
<div class="scroller pseudo">
|
|
<div class="content">
|
|
</div>
|
|
|
|
</div>
|
|
<div id="log"></div>
|
|
</body>
|
|
<script type="text/javascript">
|
|
'use strict';
|
|
|
|
promise_test(async t => {
|
|
await waitForCSSScrollTimelineStyle();
|
|
const scroller = document.querySelector('.scroller');
|
|
assert_equals(getComputedStyle(scroller, ':before').backgroundColor,
|
|
'rgb(0, 255, 0)');
|
|
}, `named timeline on pseudo-element attaches to parent scroll container`);
|
|
</script>
|
|
</html>
|