         {
                border-left-color: red;
            }
            #parent
            {
                background: red;
                margin-top: 5px;
                width: 38px;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there are two solid green boxes below and there is no red visible on the page.</p>
        <div class="ref1"></div>
        <div class="test1"></div>
        <div id="parent">
            <div class="ref2"></div>
        