<!DOCTYPE html>
<html>
<head>
<script src="resources/text-based-repaint.js"></script>
<script>
window.onload = function() {
runRepaintTest();
};
function repaintTest() {
document.getElementsByTagName('iframe')[0]
.contentDocument
.getElementsByTagName('div')[0]
.style
.backgroundColor = 'green';
}
</script>
</head>
<div style="height: 400px"></div>
<iframe srcdoc="<div style='height: 50px; width: 50px; background-color: red;'></div>"></iframe>