<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS test reference</title>
<link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
div {
    font: 20px/1 Ahem;
    white-space: pre;
}
span { background: blue; }
</style>

<p>Test passes if the characters below are arranged in a single line and if there is a blue square at the end of the first line.
<div>X X<span> </span></div>