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<!DOCTYPE html>
<html>
  <meta charset="UTF-8">
  <title>CSS Containment Test: absolute positioned 'contain: size' element is monolithic</title>
  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
  <link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-size">
  <link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
  <meta  name="assert" content="This test checks that an absolute positioned element with size containment is monolithic.">

  <style>
  #multicol {
    width: 300px;
    column-count: 3;
  }
  #container {
    position: relative;
  }
  #abs-size-contain {
    position: absolute;
    contain: size;
    width: 100px;
    height: 100px;
    background: green;
  }
  </style>

  <p>Test passes if there is a filled green square.</p>
  <div id="multicol">
    <div id="container">
      <div id="abs-size-contain"></div>
    </div>
  </div>
</html>