nt: 20px/1em Ahem;
                margin-top: 1em;
            }
            body
            {
                margin: 0;
            }
            div
            {
                background: green;
                margin-top: 1em;
                height: 1em;
                width: 5em;
            }
            p
            {
                font: 12pt serif;
            }
        </style>
    </head>
    <body>
        <div></div>
        <p>Test passes if there is <strong>no red</strong>.</p>
    <