<!DOCTYPE HTML>
<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->
<html class="reftest-wait" reftest-zoom="0.3">
<head>
  <style type="text/css">
    #container {
      height: 100px;
      overflow: auto;
    }
    #container-background {
      background: url(one-pixel-wide-background.png);
    }
    #container-background > div {
      line-height: 20px;
    }
  </style>
</head>
<body>
  <div id="container">
    <div id="container-background">
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
      <div>Item</div>
    </div>
  </div>
</body>
<script>
  var container = document.getElementById('container');

  // Start scrolled all the way to the bottom.
  container.scrollTop = container.scrollHeight;

  // When we get MozReftestInvalidate, scroll to the top. This puts us at the
  // same scroll position as the reference.
  function doTest() {
    container.scrollTop = 0;
    document.documentElement.removeAttribute('class');
  }

  document.addEventListener("MozReftestInvalidate", doTest, false);
</script>
</html>