<html>
<head>
<style>

body {
    height:2000px;
    margin:0;
    background-image:url(resources/green-blue.png);
    background-attachment:fixed;
    overflow:hidden;
}

</style>

<script>
function runTest() {
    if (window.internals)
        window.internals.setTopContentInset(50);
}

window.addEventListener('load', runTest, false);
</script>
</head>

<body>
</body>
</html>