<!DOCTYPE html> <title>flexbox | flex: N 0 N% | shrinking</title> <link rel="author" href="http://opera.com" title="Opera Software"> <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#flex-property"> <link rel="match" href="flexbox_flex-N-0-Npercent-shrink-ref.html"> <style> div { background: blue; margin: 1em 0; border: 1px solid black; height: 8em; width: 12em; display: flex; } span { background: white; margin: 1em 0; width: 5em; display: inline-block; flex: 4 0 50%; } span:nth-child(1) {background: yellow;} span:nth-child(2) {background: pink;} span:nth-child(3) {background: lightblue;} span:nth-child(4) {background: grey;} </style> <div> <span>one</span> <span>two</span> <span>three</span> <span>four</span> </div>