css/css-flexbox/justify-content-006.html

<!DOCTYPE html>
<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#justify-content-property">
<meta name="assert" content="Flex item in nested column flexbox is justified properly.">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>

<style>
.outer {
  display: flex;
  flex-direction: column;
  width: 100px;
  border: 2px solid black;
  position: relative;
}
.middle {
  flex: 0 0 50px;
  min-height: 50px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
</style>

Test passes if orange square is in bottom left corner of rectangle.

<div class="outer">
  <div class="middle">
    <div style="width: 30px; height: 30px; background: orange" data-offset-y=20></div>
  </div>
</div>

<script>
checkLayout('.middle > div');
</script>