<!DOCTYPE html>
<title>flexbox | flex: larger integer, zero basis</title>
<link rel="author" href="http://opera.com" title="Opera Software">
<style>
div {
border: 1px solid black;
height: 8em;
width: 36em;
}
span {
width: 6em;
height: 8em;
float: left;
}
span:nth-child(2) {
width: 18em;
}
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>