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Test Info:
<html class="reftest-wait">
<head>
<style>
div {
width: 200px;
height: 200px;
background-color: blue;
filter: greyscale(50%);
position: relative;
}
#second {
width: 600px;
height: 500px;
display: none;
background-color: green;
}
</style>
</head>
<body>
<div id="top" style="z-index:-4;"></div>
<div style="top: 10px;"></div>
<div style="top: 20px;">
<div id="second" style="top: -400px;"></div>
</div>
<script>
function doTest2() {
document.getElementById("second").style.display = "block";
document.documentElement.removeAttribute("class");
}
function doTest() {
document.getElementById("top").style.zIndex = -5;
setTimeout(doTest2, 500);
}
document.addEventListener("MozReftestInvalidate", doTest);
</script>
</body>
</html>