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<!DOCTYPE html>
<html>
<head>
<style>
#container {
will-change: top;
position: absolute;
left: 200px;
top: 100px;
width: 100px;
height: 100px;
background-color: blue;
}
.fixed {
position: fixed;
left: 50px;
top: 50px;
width: 75px;
height: 75px;
background-color: green
}
</style>
<script src="../../fast/repaint/resources/text-based-repaint.js"></script>
<script>
function repaintTest()
{
// Adding "will-change: -webkit-transform" to the container div should
// make this div become the containing block for its fixed position
// descendant.
document.getElementById("container").style.willChange = "transform";
}
onload = runRepaintAndPixelTest;
</script>
</head>
<body>
<div id="container">
<div class="fixed"></div>
</div>
</body>
</html>
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