pref-width-1c.html
<!DOCTYPE html>
<html>
<head>
<style>
div { column-count:2; column-width:100px; column-gap:0; float:left; border:2px solid black; height:200px; }
div.clear { clear:both; }
div.gap { column-gap:80px; }
span { display:inline-block; width:200px; }
</style>
</head>
<body>
<div>
<span></span><br><span></span>
</div>
<div class="gap clear">
<span></span><br><span></span>
</div>
</body>
</html>
