        margin-left: auto;
                margin-right: auto;
                position: absolute;
            }
            div div
            {
                background: orange;
                height: 1in;
                margin-top: 1in;
                width: 1in;
            }
        </style>
    </head>
    <body>
        <p>Test passes if the blue and orange boxes below are the same width, and the blue box is in the upper-left corner of the black box.</p>
        <div id="div1">
