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Test Info: Warnings

<!DOCTYPE html>
<title>Layout Instability: resizing content-visibility:auto 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);
}, 'off-screen content-visibility:auto');
.auto {
content-visibility: auto;
contain-intrinsic-size: 10px 3000px;
width: 100px;
.contained {
height: 100px;
background: blue;
<div class=auto><div class=contained></div></div>
<div class=auto><div class=contained></div></div>