: absolute;
        top: 80px;
        left: 60px;
        width: 40px;
        height: 40px;
        background-color: red;
        z-index: -1;
    }
    </style>
    <body>
    <p>The test passes if there is a green square to the left of the blue line. There should be no red.</p>
    <div id="container">
        <div id="test-container">
            <div id="test-shape"></div>
            <br/>
            <br/>
            X
        </div>
        <div id="line"></div>
        <div id="failure"></div>
 