css/css-grid/grid-items/aspect-ratio-005.html

<!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 and the track sizes get updated.">
<link rel="match" href="../../reference/ref-filled-green-100px-square-only.html">
<style>
    body { overflow: hidden; }
</style>
<p>Test passes if there is a filled green square.</p>
<div style="display: inline-grid; grid-template-rows: 50px 50px; background: red; height: 100px;">
  <div style="grid-row: 1; background: green; aspect-ratio: 2/1; height: 100%;"></div>
  <div style="grid-row: 2; background: green;"></div>
</div>