tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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scroll-marker-group-002.html (803B)

      1 <!doctype html>
      2 <meta charset="utf-8">
      3 <title>CSS Test: ::scroll-marker-group invalidation</title>
      4 <link rel="match" href="scroll-marker-group-001-ref.html">
      5 <link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-pseudo">
      6 <style>
      7  :root {
      8    --scroll-marker-group-background: red;
      9  }
     10 
     11  div {
     12    overflow: auto;
     13    scroll-marker-group: before;
     14  }
     15 
     16  div::scroll-marker-group {
     17    background: var(--scroll-marker-group-background);
     18    display: flex;
     19    height: 100px;
     20    width: 100px;
     21  }
     22 </style>
     23 <p>Test passes if there is a <strong>filled green rectangle</strong>.
     24 <div></div>
     25 <script>
     26  document.documentElement.offsetTop;
     27  document.documentElement.style.setProperty('--scroll-marker-group-background', 'green');
     28  document.documentElement.offsetTop;
     29 </script>