<!DOCTYPE html>
<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
<link rel="help" href="https://crbug.com/1306037">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<meta name="assert"
  content="Abspos child of a flexbox moves after script changes its alignment.">
<style>
  #reference-overlapped-red {
    position: absolute;
    background-color: red;
    width: 100px;
    height: 100px;
    z-index: -1;
  }

  #parent {
    position: relative;
    display: flex;
    width: 200px;
    height: 200px;
  }

  #child {
    display: flex;
    position: absolute;
    width: 100px;
    height: 100px;
    background-color: green;
    align-self: end;
  }

</style>

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

<div id=reference-overlapped-red></div>

<div id="parent">
  <div id="child"></div>
</div>

<script>
  document.body.offsetTop;
  child.style.alignSelf = 'start';
</script>
