<!DOCTYPE html>
<p>Test that a margin in column content right before a spanner is accounted for properly.</p>
<p>There should be a blue square below, and no scrollbars.</p>
<div style="overflow:auto; width:12em; -webkit-columns:3; -webkit-column-gap:0; background:blue;">
    <div style="height:2em; margin-bottom:22em;">&nbsp;</div>
    <div style="-webkit-column-span:all; height:4em;">&nbsp;</div>
</div>