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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Reference file for various tests that update an animation with a scroll timeline</title>
<script src="/web-animations/testcommon.js"></script>
</head>
<style type="text/css">
#scroller {
border: 1px solid black;
overflow: hidden;
width: 300px;
height: 200px;
}
#target {
margin-bottom: 800px;
margin-top: 800px;
margin-left: 10px;
margin-right: 10px;
width: 100px;
height: 100px;
z-index: -1;
background-color: green;
}
</style>
<body>
<div id="scroller">
<div id="target"></div>
</div>
</body>
<script type="text/javascript">
document.documentElement.addEventListener('TestRendered', async () => {
runTest();
}, { once: true });
async function runTest() {
// Defaults to exit 60% if using a view timeline with subject = target.
const DEFAULT_SCROLL_POS = 860;
await waitForCompositorReady();
const urlParams = new URLSearchParams(window.location.search);
target.style.transform =
`translateX(${urlParams.get('translate') || "0px"}`;
scroller.scrollTop = urlParams.get('scroll') || DEFAULT_SCROLL_POS;
await waitForNextFrame();
await waitForNextFrame();
// Make sure change to animation range was properly picked up.
document.documentElement.classList.remove("reftest-wait");
}
</script>
</body>
</html>
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