css/css-flexbox/position-absolute-005.html

<!DOCTYPE html>
<title>CSS Test: Absolutely positioned children of flexboxes</title>
<link rel="author" title="Google Inc." href="http://www.google.com/">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#abspos-items">
<link rel="match" href="position-absolute-005-ref.html">
<meta name="assert" content="Checks that we correctly handle overflow: auto in
abspos nodes in flexbox">

<style>
  body {
    width: 400px;
    height: 300px;
  }

  .flexbox {
    display: flex;
  }

  .column {
    flex-direction: column;
  }

  .flex11a {
    flex: 1 1 auto;
  }

  .root {
    height: 100px;
    overflow-y: auto;
    position: relative;
  }

  #abspos {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 10px;
  }
</style>


<p>This test should not have a horizontal scrollbar</p>

<div class="flexbox column">
  <div class="flexbox">
    <div class="flex11a">
      <div class="root">
        <div>
          <div>
            <div id="history"></div>
            <div id="abspos"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

<script>
onload = function() {
  var historyEl = document.getElementById('history');
  historyEl.offsetWidth;
  historyEl.innerText = '\n\n\n\n\n\n\n\n';
};
</script>