h1 {
            text-align: center;
            margin-bottom: 30px;
            color: #2c3e50;
            font-weight: 600;
        }
       
        /* Dropdown container styling */
        .dropdown-container {
            display: flex;
            justify-content: center;
            margin-bottom: 40px;
        }
        
        /* Triple lines icon (hamburger menu) */
        .menu-icon {
            width: 50px;
            height: 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            background-color: #3498db;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
        }
        
        .menu-icon:hover {
            background-color: #2980b9;
            transform: translateY(-2px);
        }
        
        .menu-icon:active {
            transform: translateY(1px);
        }
        
        .menu-icon span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: white;
            margin: 3px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        
        /* When menu is active, transform middle line */
        .menu-icon.active span:nth-child(1) {
            transform: translateY(9px) rotate(45deg);
        }
        
        .menu-icon.active span:nth-child(2) {
            opacity: 0;
        }
        
        .menu-icon.active span:nth-child(3) {
            transform: translateY(-9px) rotate(-45deg);
        }
        
        /* Dropdown menu */
        .dropdown-menu {
            position: absolute;
            top: 120px;
            background-color: white;
            min-width: 200px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            border-radius: 8px;
            overflow: hidden;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 100;
        }
        
        .dropdown-menu.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .dropdown-menu a {
            display: block;
            padding: 15px 20px;
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            border-bottom: 1px solid #f1f1f1;
            transition: all 0.2s ease;
        }
        
        .dropdown-menu a:hover {
            background-color: #f8f9fa;
            color: #3498db;
            padding-left: 25px;
        }
        
        .dropdown-menu a:last-child {
            border-bottom: none;
        }
       
        .code-block {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 20px;
            border-radius: 6px;
            font-family: 'Courier New', monospace;
            margin-top: 20px;
            overflow-x: auto;
        }