Codebase Browser
chromium
Go to App

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

<!DOCTYPE html>
<title>View transitions: capture opacity elements (ref)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">
<style>
.box {
  background: lightgreen;
  width: 100px;
  height: 100px;
  contain: paint;
  position: absolute;
  will-change: transform;
}
#e1 {
  top: 10px;
  left: 30px;
}
</style>
<div id=e1 class=box></div>