<!DOCTYPE html>

  <meta charset="UTF-8">

  <title>CSS Positioned Layout Test: element with 'position: sticky' and removing a sibling in the vertical axis and in the horizontal axis</title>

  <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
  <link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos">

  <meta name="flags" content="">

  <style>
  div#scrollingContainerVert
    {
      background-color: red;
      height: 100px;
      overflow: auto;
      width: 200px;
    }

  div#scrollingContainerHoriz
    {
      background-color: red;
      height: 100px;
      overflow-x: auto;
      overflow-y: hidden;
      width: 200px;
    }

  div#elemStickyVert
    {
      background-color: green;
      height: 100px;
      position: sticky;
      top: 0px;
    }

  div#scrollingContainerHoriz > div
    {
      display: inline-block;
      height: 100%;
    }

  div#elemStickyHoriz
    {
      background-color: green;
      left: 0px;
      position: sticky;
      width: 200px;
    }

  div#tallItem
    {
      height: 600px;
    }

  div#wideItem
    {
      width: 600px;
    }
  </style>


  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <p>Test passes if there is a filled green square and <strong>no scrollbar</strong>.

  <div id="scrollingContainerVert">

    <div id="elemStickyVert"></div>

    <div id="tallItem"></div>

  </div>


  <div id="scrollingContainerHoriz">

    <div id="elemStickyHoriz"></div><div id="wideItem"></div>

  </div>


  <script>
  test(()=> {
  scrollingContainerVert.scrollTop = 600;
  tallItem.style.display = "none";
  assert_equals(scrollingContainerVert.scrollHeight, 100);
  }, "Sticky position and its overflow contribution in the vertical axis");

  test(()=> {
  scrollingContainerHoriz.scrollLeft = 600;
  wideItem.style.display = "none";
  assert_equals(scrollingContainerHoriz.scrollWidth, 200);
  }, "Sticky position and its overflow contribution in the horizontal axis");
  </script>
