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Test Info:

<html class="reftest-wait">
<head>
<style>
#opt1 { display: table-footer-group; }
#opt1 { visibility: collapse; }
#opt1 { overflow: hidden scroll; }
#opt2 { display: table-cell; }
#opt2 { clear: left; }
select { width: 1px; }
</style>
<script>
function boom()
{
document.getElementById("opt2").style.clear = "none";
document.documentElement.removeAttribute("class");
}
</script>
</head>
<body onload="setTimeout(boom, 30);">
<select multiple>
<option id="opt1">A</option>
<option id="opt2">B</option>
</select>
</body>
</html>