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Test Info:

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
div { height: 10px; margin: 1em; outline: 1px inset black; }
</style>
</head>
<body onload="document.getElementById('a').style.padding = '12em 0';" style="column-count: 2; width: 1px;"><div id="a">aaaa aaaa aaaa</div><div style="border: medium solid blue;"></div><div style="border: medium solid green; margin: 10em 0pt;"></div><div style="border: medium solid magenta;"></div>xxxx xxxx xxxx</body>
</html>