chromium/third_party/blink/web_tests/compositing/reflections/reflection-on-composited.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">

<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>Reflections on composited element</title>
  <style type="text/css" media="screen">
    .reflected {
      height: 100px;
      width: 200px;
      margin: 20px;
      margin-bottom: 120px;
      background-color: gray;
      -webkit-box-reflect: below 2px;
    }
    .transformed {
      transform: rotate3d(0, 0, 1, 0);
    }
  </style>
</head>
<body>

<div class="transformed reflected">Here is some text</div>

<div id="container" class="transformed">
  <div class="reflected">Here is some text</div>
</div>

</body>
</html>