{
                border-right: 2.54cm solid red;
            }
            div div
            {
                border-right: 2.54cm solid black;
                margin-right: -5.08cm;
                right: +2.54cm;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is <strong>no red</strong>.</p>
        <div id="div1">
            <div></div>
        </div>
    </body>
</html>