<!DOCTYPE html>
<title>Reference for document timeline animation</title>
<style>
  #notes {
    position: absolute;
    left: 0px;
    top: 100px;
  }
  body {
    background: white;
  }
</style>
<body>
  <div id="box"></div>
  <p id="notes">
    This test creates a document timeline animation. If any blue pixels appear
    in the screenshot, the test fails.
  </p>
</body>