eight: 5in;
                margin-left: 5px;
            }
            #test
            {
                border-bottom-style: solid;
                border-bottom-width: +5in;
                height: 0;
            }
        </style>
    </head>
    <body>
        <p>Test passes if the two boxes below are the same height.</p>
        <div id="test"></div>
        <div id="reference"></div>
    </body>
</html>