 {
                font: 20px/1 Ahem;
                height: 1in;
            }
            #div1
            {
                border-left: 1em solid red;
                padding-left: 1em;
            }
            div div
            {
                border-left: 1em solid black;
                margin-left: -2em;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is <strong>no red</strong>.</p>
        <div id="div1">
            <div></div>
        </div>
    </body