e;
                width: 400px;
            }
            #reference
            {
                color: red;
                left: 0;
                position: absolute;
                top: 0;
                z-index: -1;
            }
            #test
            {
                text-indent: +50%;
                margin-left: -50%;
                margin-right: 50%;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is no red visible on the page.</p>
        <div i