<!DOCTYPE HTML>
<title>Details and summary and display property (subgrid)</title>
<link rel="match" href="details-display-type-001-ref.html">
<link rel="help" href="https://github.com/whatwg/html/pull/10265">
<link rel="help" href="https://github.com/dbaron/details-styling">
<link rel="help" href="https://crbug.com/1469418">
<style>

.container {
  display: grid;
  grid: 30px 75px 45px / 80px 125px 90px;
}

.container::before {
  display: block;
  content: "before";
  background: aqua;
  grid-area: 1 / 3;
}