er {
            background-color: #5bb75b;
            background-image: none;
            border-color: rgba(0, 0, 0, 0);
        }
    </style>


    <header class="page-header" tabindex="0">
        <div class="header-left">
            <div class="btn-open" data-action="open-left" role="button" aria-label="Open Menu"></div>

            <a href="javascript:window.history.go(-1)" class="btn-back" aria-label="Back Button"></a>
        </div>


        <h1 class="page-title  with-back-btn">CS 1632 - 1120<