root-to-shared-animation-start-ref.html

<!DOCTYPE html>
<html>
<title>Root to shared animation test (ref)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">

<style>
body {
  background: lightgreen;
  padding: 0;
  margin: 0;
}
#box {
  width: 100px;
  height: 120px;
  background: blue;
  contain: paint;
}
</style>

<div id=box></div>

chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/root-to-shared-animation-start-ref.html