<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="columns:2; gap:0; column-fill:auto; width:100px; height:100px; background:red;">
  <div style="height:50px; background:green;"></div>
  <div style="display:flex;">
    <div style="display:flex;">
      <div style="width:50px;">
        <div style="height:30px;"></div>
        <div style="height:50px; contain:size; background:green;"></div>
      </div>
    </div>
  </div>
  <div style="height:50px; margin-left:-100%; width:200%; background:green;"></div>
</div>
