<!DOCTYPE html>
<html>

<head>
    <style type="text/css" media="screen">
        body {
            margin: 0;
            height: 2200px;
        }

        .scrolly {
            overflow: scroll;
            width:200px;
            height:200px;
            border: 2px solid black;
        }
        
        .big {
            border:1px solid purple;
            height: 500px;
            width:50px;
        }

        .fixed {
            height: 100px;
            width: 100px;
            position: fixed;
            background: green;
        }
    </style>
    <script type="text/javascript" charset="utf-8">
      if (window.testRunner) {
        testRunner.waitUntilDone();
        testRunner.dumpAsText();
      }

      function doScroll()
      {
        window.setTimeout(function() {
        window.scrollTo(0, 200);
          if (window.testRunner) {
            document.getElementById('results').innerText = window.internals.scrollingStateTreeAsText();
            testRunner.notifyDone();
          }
        }, 10);
      }
      
      window.addEventListener('load', doScroll, false);
    </script>
</head>
<body>
    <pre id="results"></pre>
    <div class="scrolly">
        <div class="fixed"></div>
        <div class="big"></div>
    </div>
</body>
</html>