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Test Info: Warnings

<!DOCTYPE html>
<title>Layout Instability: content-visibility:hidden content</title>
<link rel="help" href="" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/util.js"></script>
// These scripts need to be before the contents because we need to ensure no
// layout shifts during page load.
promise_test(async () => {
const watcher = new ScoreWatcher;
// Wait for the initial render to complete.
await waitForAnimationFrames(2);
assert_equals(watcher.score, 0);
}, 'on-screen content-visibility:auto');
#target {
content-visibility: hidden;
contain-intrinsic-size: 1px;
width: 100px;
<div id=target>
<div style="width: 100px; height: 100px; background: blue"></div>