<!DOCTYPE html>
<html>
<head>
    <title>CSS Flexible Box Test: align-content property - space-between</title>
    <link rel="author" title="haosdent" href="mailto:haosdent@gmail.com">
    <style type="text/css">
        .container {
        position: relative;
        height: 14em;
        width: 20em;
        background: red;
        margin: 1em;
        border: 1px solid black;
        }
	.first, .second {
	margin-bottom: 112px;
	}
        span {
        height: 2em;
        display: inline-block;
        background: green;
        color: white;
        margin: 1em;
        width: 8em;
        float: left;
        }
    </style>
</head>
<body>
    <p>The test passed if you see a 2*2 table and all the cells are spaced equally apart.</p>
    <div class="container">
      <span class="first">first</span>
      <span class="second">second</span>
      <span>third</span>
      <span>forth</span>
    </div>
</body>
</html>