 #div1
            {
                border-bottom: 3px solid red;
                position: absolute;
                width: 100%;
            }
            #div2
            {
                margin-bottom: +50%;
            }
            #div3
            {
                border-bottom: 3px solid black;
                margin-top: -1in;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is <strong>no red</strong>.</p>
        <div id="wrapper">
            <div id="div