<!DOCTYPE html>
<html>
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht" />
<style>
  .grid {
    display: grid;
    width: 100px;
  }

  .item {
    all: unset;
    aspect-ratio: 1 / 1;
    background-color: green;
    height: 100%;
    width: 100%;
  }
</style>

<p id="text">Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div class="grid">
   <div id="item" class="item"></div>
</div>

<script>
item.style.padding = "10px";
document.body.offsetTop;
item.style.padding = "0px";
</script>
