th: 100px }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="grid">
  <div class="subgrid">
    <div style="background: green"><div class="w100"></div></div>
    <div style="background: green"><div class="w100"></div></div>
  </div>
</div>
