chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/navigation/root-and-nested-element-transition.html

<!DOCTYPE html>
<html class="reftest-wait">
<title>View transitions: basic cross-document navigation with nested element</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="root-and-nested-element-transition-ref.html">
<meta name="fuzzy" content="root-and-nested-element-transition-ref.html:0-2;0-2000">

<script src="/common/reftest-wait.js"></script>
<style>
@view-transition { navigation: auto; }
html {
  background: grey;
}
.hidden {
  width: 10px;
  height: 10px;
  view-transition-name: hidden;
  background: green;
  contain: layout;
}
.target {
  width: 100px;
  height: 100px;
  background: lightblue;
  contain: layout;
  view-transition-name: target;
  overflow: visible;
}
.inner {
  width: 100px;
  height: 100px;
  position: relative;
  top: 50px;
  left: 50px;
  border: 5px solid black;
}
</style>
<div class="target">
  This is old element
  <div class="inner"></div>
</div>
<div class="hidden"></div>

<script>
function runTest() {
  const url = "resources/root-and-nested-element-transition.html";
  window.location.replace(new URL(url, window.location));
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
</html>