<!DOCTYPE html>
<html>
<script src="resources/text-based-repaint.js"></script>
<body onload="runRepaintTest()">
You should see the text 'after' in the inner box with no mangled pixels.
<div id="parent" style="position:absolute; width:125px; height:300px; overflow:hidden; border: solid 1px red">
<div style="position:absolute; width:100px; height:100px; left:100px; top:100px; border:solid 1px green; overflow:hidden">
<div id="target" style="width:50px; height:50px">before</div>
</div>
<div style="width:1000px; height:1000px;"></div>
</div>
</body>
<script>
parent = document.getElementById('parent');
parent.scrollTop = 10;
parent.scrollLeft = 10;
function repaintTest() {
document.getElementById('target').innerText = 'after';
}
</script>
</html>