 <strong>no red</strong>.</p>
<div style="columns:4; column-gap:0; width:400px;">
  <div style="column-span:all; display:inline-block;">
    <div style="float:left; width:100px; height:50px; background:green;"></div>
    <div style="float:left; width:100px; height:50px; background:green;"></div>
  </div>
</div>
