chromium/third_party/blink/web_tests/external/wpt/css/css-contain/content-visibility/content-visibility-027.html

<!doctype HTML>
<html class="reftest-wait">
<meta charset="utf8">
<title>Content Visibility: auto in the viewport.</title>
<link rel="author" title="Vladimir Levin" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<link rel="match" href="content-visibility-027-ref.html">
<meta name="assert" content="content-visibility auto element in the viewport paints">
<meta name="assert" content="content-visibility auto element in the viewport does not have size containment">

<script src="/common/reftest-wait.js"></script>

<style>
div {
  content-visibility: auto;
  border: 1px solid black;
}
</style>

<div class=locked>
  Test passes if there is a border around this text.
</div>

<script>

window.onload = requestAnimationFrame(() => {
  requestAnimationFrame(() => {
    requestAnimationFrame(() => {
      takeScreenshot();
    });
  });
});

</script>
</html>