<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#algo-overview">
<meta name="assert" content="An element with an aspect-ratio resolves its percentage against the definite row.">
<link rel="match" href="../../reference/ref-filled-green-100px-square-only.html">
<p>Test passes if there is a filled green square.</p>
<div style="display: inline-grid; grid-template-rows: 100px; background: green;">
  <div style="aspect-ratio: 2/1; height: 50%;"></div>
</div>