   <style>
        /* Custom styling for layout adjustments */
        .left_nav, .right_nav {
            background-color: #f8f9fa;
            padding: 15px;
            border-radius: 5px;
            position: fixed;
            top: 70px;
            bottom: 0;
            width: 280px;
            overflow-y: auto;
        }
        .left_nav {
            left: 0;
        }
        .right_nav {
            right: 0;
            text-align: center;
        }
        .right_nav img {
            max-width: 100px;
            margin-bottom: 15px;
        }
        .main_content {
            background-color: #ffffff;
            padding: 20px;
            border-radius: 5px;
            margin-left: 300px;
            margin-right: 300px;
        }
        @media (max-width: 991px) {
            .left_nav, .right_nav {
                position: relative;
                width: 100%;
                margin-bottom: 20px;
            }
            .main_content {
                margin-left: 0;
                margin-right: 0;
            }
        }
    </style>