(135deg, #6b7280, #4b5563);
            bottom: 0;
            cursor: pointer;
            left: 0;
            position: absolute;
            right: 0;
            top: 0;
            transition: .4s;
            border-radius: 28px;
        }
        
        .slider:before {
            background-color: #fff;
            bottom: 4px;
            content: "";
            height: 20px;
            left: 4px;
            position: absolute;
            transition: .4s;
            width: 20px;
          