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<!DOCTYPE html>
<title>Layout Instability: fully clipped visual rect</title>
<link rel="help" href="https://wicg.github.io/layout-instability/" />
<style>
body { margin: 0; }
#clip { width: 0px; height: 600px; overflow: hidden; }
#j { position: relative; width: 300px; height: 200px; background: blue; }
</style>
<div id='clip'><div id='j'></div></div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/util.js"></script>
<script>
promise_test(async () => {
const watcher = new ScoreWatcher;
// Wait for the initial render to complete.
await waitForAnimationFrames(2);
// Shift an element that is fully clipped by its container.
document.querySelector("#j").style.top = "200px";
await waitForAnimationFrames(3);
assert_equals(watcher.score, 0);
}, "Fully clipped visual rect.");
</script>
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