<html>
<head>
<style>
  iframe {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    border-width: 0px;
  }
</style>
</head>
<body>
  <!-- this test should only show green -->
  <iframe id="iframe" src="resources/fixed-position-subframe.html"></iframe>
</body>
</html>