chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/transition-in-empty-iframe-ref.html

<!DOCTYPE html>
<html>
<head>
  <title>View transitions: Transition from an empty iframe (ref)</title>
  <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
  <link rel="author" href="mailto:[email protected]">
  <style>
    iframe {
      position: absolute;
      left: 25px;
      top: 25px;
      width: 50vw;
      height: 50vh;
    }
    div {
      background-color: skyblue;
      width: 100px;
      height: 100px;
    }
  </style>
</head>

<body>
  <iframe src="support/transition-in-empty-iframe-child.html?ref">
  </iframe>
  <div></div>
</body>
</html>