chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/new-content-changes-overflow-ref.html

<!DOCTYPE html>
<title>View transitions: capture elements and then change overflow (ref)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">
<style>
body { background: pink }
#target {
  position: relative;
  background: green;
  width: 100px;
  height: 100px;
  view-transition-name: target;
}
#child {
  background: blue;
  position: relative;
  top: 20px;
  left: 30px;
  width: 50px;
  height: 100px;
}
#child.large {
  height: 200px;
}
</style>

<div id=target><div id=child class=large></div></div>