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<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->
<html>
  <head>
    <title>CSS Test: Sticky Positioning - absolute containing block</title>
    <link rel="author" title="Corey Ford" href="mailto:cford@mozilla.com">
    <link rel="match" href="containing-block-1-ref.html">
    <meta name="assert" content="Sticky positioned elements should establish a containing block for absolutely positioned descendants">
    <style>
      body {
        height: 200px;
        margin: 0;
      }
      #sticky {
        position: sticky;
        top: 100px;
        height: 10px;
        background-color: black;
      }
      #absolute {
        position: absolute;
        top: 5px;
        left: 5px;
        width: 10px;
        height: 10px;
        background-color: blue;
      }
    </style>
  <body>
    <div id="sticky">
      <div id="absolute"></div>
    </div>
  </body>
</html>