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Test Info:
<!DOCTYPE html>
<html>
<head>
<style>
#colset {
column-count: 2;
column-gap: 0;
border: 2px solid black;
height: 12em;
}
#b {
margin: 10em 0pt;
}
#i {
margin: 12em 0pt;
float: left;
-moz-appearance: radio-small;
}
</style>
</head>
<body onload="document.getElementById('i').style.padding = '1em 0';">
<div id="colset"><br id="b"><div id="i"></div></div>
</body>
</html>