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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<!-- TODO: update link -->
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<link rel="match" href="transform-clip-ref.html">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- accommodate anti-aliasing at edge of circle -->
<meta name="fuzzy" content="maxDifference=0-150; totalPixels=0-600">
<title>Scoped view transform with transform and clip.</title>
</head>
<script src="/common/reftest-wait.js"></script>
<script src="resources/compute-test.js"></script>
<script src="/dom/events/scrolling/scroll_support.js"></script>
<style>
#clipper {
view-transition-group: contain;
view-transition-name: clipper;
overflow: clip;
height: 100px;
width: 100px;
border-radius: 50px;
position: absolute;
top: 20px;
left: 20px;
}
#target {
height: 50px;
background-color: forestgreen;
view-transition-name: target;
will-change: transform;
}
::view-transition-group(clipper) {
animation-play-state: paused;
background-color: hotpink;
overflow: clip;
border-radius: 50px;
}
.lower {
transform: translateY(25px);
}
</style>
<body>
<div id=clipper>
<div id=target></div>
</div>
</body>
<script>
async function runTest() {
const clipper = document.getElementById('clipper');
const target = document.getElementById('target');
await waitForNextFrame();
const vt = clipper.startViewTransition(() => target.classList.add("lower"));
await vt.ready;
document.getAnimations().forEach(a => {
if (a.playState != 'paused') {
a.finish();
}
});
requestAnimationFrame(takeScreenshot);
}
onload = () => {
waitForCompositorReady().then(runTest);
}
</script>
</html>
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