has-composited-iframe-child.html | Explore in Territory

<html>
  <head>
    <style>
      body {
        overflow: hidden;
        height: 1000px;
      }
      iframe {
        position: absolute;
        top: 0px;
        left: 0px;
        width: 200px;
        height: 200px;
        border: 0px;
      }
    </style>
  </head>
  <body>
    <iframe src="composited-red.html"></iframe>
  </body>
</html>

chromium/third_party/blink/web_tests/compositing/iframes/resources/has-composited-iframe-child.html