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Test Info:
<head>
<style type="text/css">
#colset { column-count: 3; }
#a { height: 0px; }
#b { height: 2px; }
#c { height: 1px; }
#d { height: 2px; }
#e { height: 2px; }
</style>
<script type="text/javascript">
function boom()
{
document.getElementById("a").style.height = "auto";
document.getElementById("d").style.height = "auto";
}
</script>
</head>
<body onload="boom();"
><div id="colset"
><div id="a"><div id="b"/></div
><div id="c"><div id="d"/><div id="e"/></div
></div
></body>
</html>