File: scroll-marker-group-016.html

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<!DOCTYPE html>
<title>Absolutely-positioned scroll-marker-group - no size containment implied</title>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-property">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/11166#issuecomment-2607753417">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<style>
  #sc {
    anchor-name: --a;
    overflow: hidden;
    width: 200px;
    height: 50px;
    scroll-marker-group: before;
  }
  #sc::scroll-marker-group {
    position: absolute;
    position-anchor: --a;
    position-area: bottom center;
    background: red;
  }
  #sc > div::scroll-marker {
    float: left;
    content: "";
    width: 50px;
    height: 50px;
    background: green;
  }
</style>

<div style="display:flow-root; width:100px; height:100px; background:red;">
  <div id="sc" style="margin-left:-50px;">
    <div style="margin:auto; width:100px; height:50px; background:green;"></div>
    <div></div>
  </div>
</div>