size-props" />
        <meta name="flags" content="ahem" />
        <meta name="assert" content="The 'font-size' property sets a minimum plus one length value in 'ex' units." />
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                font-family: Ahem;
                font-size: 1ex;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is a box below.</p>
        <div>X</div>
    </body>
</html>