<!DOCTYPE html>
<p>There should be one yellow boxbelow, on a blue background. There is only one because the content is composited, and hence not fragmented.</p>
<div style="-webkit-columns:2; column-fill:auto; width:17em; height:13em; line-height:2em;">
<div style="will-change:transform; position:absolute; left:0; right:0; height:13em; background:blue;"></div>
<br>
<br>
<br>
<br>
<div style="position:relative; margin:0.5em; background:yellow;">
first<br>
column<br>
second<br>
column<br>
</div>
</div>