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<!DOCTYPE html>
<head>
<style>
.composited {
transform: translatez(0);
}
.box {
width: 100px;
height: 100px;
}
.behind {
position: absolute;
z-index: 1;
top: 100px;
left: 100px;
background-color: blue;
}
.middle {
position: absolute;
z-index: 1;
top: 15px;
left: 15px;
background-color: lime;
}
.middle2 {
position: absolute;
z-index: 1;
top: 130px;
left: 60px;
background-color: magenta;
}
.top {
position: absolute;
z-index: 1;
top: 70px;
left: 120px;
background-color: cyan;
}
.container {
position: absolute;
z-index: 1;
top: 25px;
left: 25px;
width: 300px;
height: 300px;
background-color: gray;
}
div:hover {
background-color: green;
}
</style>
<script>
if (window.testRunner)
testRunner.dumpAsText();
function runTest()
{
if (!window.internals) {
alert('This test requires window.internals')
return;
}
document.body.textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS);
document.body.style.whiteSpace = 'pre';
}
</script>
</head>
<body onload="runTest()">
<div class="container">
<div class="composited box behind"></div>
<div class="box middle"></div>
</div>
<div class="box middle2"></div>
<div class="box top"></div>
</body>
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