chromium/third_party/blink/web_tests/external/wpt/css/css-grid/abspos/positioned-grid-items-023-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Test: Positioned grid items reference file</title>
<style>
  #grid {
    display: inline-grid;
    grid-template-columns: 50px 50px;
    grid-template-rows: 50px 50px;
    background-color: blue;
  }
  #child {
    grid-area: 2 / 2 / 2 / 2;
    width: 50px;
    height: 50px;
    background-color: green;
  }
  #grandchild {
    width: 25px;
    height: 25px;
    background-color: red;
  }
</style>

  <p>Test passes if it matches the reference.</p>

  <div id="grid">
    <div id="child">
      <div id="grandchild"></div>
    </div>
  </div>