<!DOCTYPE html> <meta charset="UTF-8"> <title>CSS Values and Units Test Reference File</title> <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <style> div { float: left; font-size: 80px; /* arbitrary font size */ line-height: 1.8; /* arbitrary line-height */ } div#blue { background-color: blue; color: blue; } div#orange { background-color: orange; color: orange; clear: left; } </style> <p>Test passes if there is a blue rectangle with the <strong>same width</strong> as an orange rectangle. <div id="blue">00000</div> <div id="orange">00000</div>