32 lines
942 B
HTML
32 lines
942 B
HTML
<!DOCTYPE html>
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<title>Layout Instability: local shift without viewport shift</title>
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<link rel="help" href="https://wicg.github.io/layout-instability/" />
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<style>
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#c { position: relative; width: 300px; height: 100px; transform: scale(0.1); }
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#j { position: relative; width: 100px; height: 10px; background: blue; }
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</style>
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<div id='c'>
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<div id='j'></div>
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</div>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/util.js"></script>
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<script>
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promise_test(async () => {
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const watcher = new ScoreWatcher;
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// Wait for the initial render to complete.
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await waitForAnimationFrames(2);
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document.querySelector("#j").style.top = "4px";
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// Make sure no shift score is reported, since the element didn't move in the
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// viewport.
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await waitForAnimationFrames(3);
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assert_equals(watcher.score, 0);
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}, "Local shift without viewport shift.");
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</script>
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