<!DOCTYPE HTML>
<html class="reftest-wait"><head>
    <meta charset="utf-8">
    <title>Testcase for bug 844178</title>
    <style type="text/css">

        html,body {
            color:black; background-color:white; font-size:16px; padding:0; margin:0;
        }
	
body {
  position: fixed;
  right: 0px;
  top: 100px;
  width: 100px;
  height: 10px;
  margin:0;
  padding:0;
}

:root { overflow:scroll; }

span {
    background:lime;
    display:inline-block;
    width:100px;
}

</style>
<script>
function doTest() {
  document.body.style.right='5px';
  document.body.offsetHeight;
  document.documentElement.removeAttribute('class');
}
document.addEventListener("MozReftestInvalidate", doTest);
</script>
</head>
<body><span>Hello</span></body>
</html>