<!DOCTYPE html>
<title>flexbox | first-line</title>
<link rel="author" href="http://opera.com" title="Opera Software">
<style>
ul {
	background: #3366cc;
	padding: 0;
	list-style: none;
	width: 900px;
	display: block;
}
li {
	background: #ffcc00;
	margin: 2em;
	border: 1px solid black;
	display: inline-block;
}
</style>

<ul>
	<li>filler</li><li>Antidisestablishmentarianism</li><li>filler</li><li>Antidisestablishmentarianism</li><li>Antidisestablishmentarianism</li><li>filler</li><li>Antidisestablishmentarianism</li><li>filler</li>
</ul>
