css/css-page/margin-boxes/dimensions-003-print-ref.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<meta name="flags" content="ahem">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
  :root {
    print-color-adjust: exact;
    font: 16px/1 Ahem;
  }
  @page {
    margin: 0;
    width: 32em;
    height: 28em;
  }
  body {
    margin: 0;
  }
  .grid {
    display: grid;
    grid-template-columns: 6em auto 6em;
    grid-template-rows: 6em auto 6em;
    height: 100vh;
    overflow: clip;
  }
  .vertical-edge {
    display: flex;
  }
</style>
<div class="grid">
  <div class="corner"></div>
  <div class="vertical-edge">
    <div style="width:10em; border:solid 0.25em; padding:0.25em; margin-right:1em;">x</div>
    <div style="width:7em; margin-left:1em; background:yellow;">x</div>
  </div>
</div>