rapper
            {
                border-right: 6pt solid red;
            }
            #div1
            {
                margin-right: +72pt;
            }
            #div2
            {
                border-right: 6pt solid black;
                margin-right: -78pt;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is <strong>no red</strong>.</p>
        <div id="wrapper">
            <div id="div1">
                <div id="div2"></div>
            </div>
   