hild(4) {
    background-color: yellow;
}
</style>
<script src="../../resources/check-layout.js"></script>
<body onload="checkLayout('.flexbox')">
<p>Test to make sure that align-content works properly.</p>

<div data-expected-height="120" class="flexbox horizontal">
  <div data-offset-x="0" data-offset-y="0" data-expected-height="40"></div>
  <div data-offset-x="100" data-offset-y="0" data-expected-height="40"></div>
  <div data-offset-x="0" data-offset-y="40" data-expected-height="40"></div>
  <div data-o