text: <!DOCTYPE html>
  <html>
    <meta charset="utf-8">
    <title>CSS Position Test: Test position:sticky element with large top in an overflow container</title>
    <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
    <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
    <link rel="help" href="https://drafts.csswg.org/css-position/#sticky-pos">
    <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1598112">
    <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/2794">
    <link rel="match" href="position-sticky-large-top-2-ref.html">
    <meta name="assert" content="This test verifies the position of a position:sticky element with large top value can be reached by scrolling the overflow container.">
  
    <style>
    .scroll {
      border: 5px solid blue;
      padding: 5px 3px 0 8px;
      overflow: auto;
      height: 200px;
      width: 200px;
    }
  
    .block {
      width: 150px;
      height: 200px;
      background: yellow;
    }
  
    .sticky {
      position: sticky;
      background: purple;
      width: 50px;
      height: 50px;
      top: 200px;
    }
    </style>
    <script>
    function runTest() {
      document.getElementById("scroll2").scrollTop = 50;
    }
    </script>
  
    <body onload="runTest();">
      <!-- test before scroll -->
      <div class="scroll">
        <span>
          <div class="sticky"></div>
        </span>
        <div class="block"></div>
      </div>
  
      <!-- test after scroll -->
      <div class="scroll" id="scroll2">
        <span>
          <div class="sticky"></div>
        </span>
        <div class="block"></div>
      </div>
    </body>
  </html>
  