css/css-multicol/multicol-fill-balance-004.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-multicol-1/#cf" title="7.1. column-fill">
<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="writing-mode:vertical-rl; columns:2; column-gap:0; inline-size:100px; background:red;">
  <div style="block-size:20px;">
    <div style="block-size:200px; background:green;"></div>
  </div>
</div>