 {
                background: red;
                height: 25.4mm;
                margin-top: 25.4mm;
                position: absolute;
                width: 100%;
            }
            #div3
            {
                border-bottom: 25.4mm solid black;
                top: 25.4mm;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is <strong>no red</strong>.</p>
        <div id="div1">
            <div id="div2"></div>
            <div id="div3"></div>
       