<!DOCTYPE html> <title>flexbox | align-content: center</title> <link rel="author" href="http://opera.com" title="Opera Software"> <style> div { background: blue; margin: 1em 0; border: 1px solid black; height: 6em; width: 20em; position: relative; } span { background: yellow; width: 8em; height: 2em; position: absolute; top: 1em; left: 1em; display: inline-block; } span:nth-child(2) { background: pink; left: 11em; } span:nth-child(3) { background: lightblue; top: 3em; left: 1em; } </style> <div> <span>one</span> <span>two</span> <span>three</span> </div>