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Test Info:

<html><head>
<script>
function doe(){
document.getElementById('a').style.display = 'none';
}
</script>
</head>
<body onload="document.body.offsetHeight; setTimeout(doe,0)">
<div style="column-count: 2;width: 400px;">
<span id="a">
<span style="float: left; column-width: 100px;">
a-a-a-a-a-a-a-a-a-a-a-a-a-a
</span>
</span>
</div>
</body>
</html>