.toggle-switch
        {
            position: relative;
            display: inline-block;
            width: 36px;
            height: 20px;
            margin-top: -1px;
            margin-left: 12px;
        }
        /* hide default checkbox */
        .toggle-switch input
        {
            opacity: 0;
            width: 0;
            height: 0;
            display: none;
        }
        /* the track ie the longer circular slide*/
        .slider-round
        {
            position: absolute;
            cursor: pointer;
            background-color: white;
            border: 1px solid black;
            border-radius: 24px;
            width: 100%;
            height: 100%;
            transition: background-color 0.5s, transform 0.3s;
            transition-timing-function: ease-in;
        }
        /* the small circular slider */
        .slider-round::before
        {
            content: "";
            position: absolute;
            height: 16px;
            /* The width is half the width of its parent (.toggle-switch) */
            width: 18px;
            padding-top: 1px;
            left: 2.5px;
            bottom: 1px;
            background-image: linear-gradient(to right, white 0%, white 50%, black 50%, black 100%);
            border: 1px solid black;
            border-radius: 90%;
            /* transition is used to 1) change the values of properties 2) give duration for a transform to happen*/
            transition: background-image 0.3s ease-in 0.2s, transform 0.5s;
        }
        /* toggled state */
        .toggle-switch
        input:checked+.slider-round
        {
            transition-delay: 0.3s;
            background-color: #4004b7;
        }
        .toggle-switch
        input:checked+.slider-round::before
        {
            /* transform is used */
            transform: translateX(12px) rotate(360deg);
            background-image: linear-gradient(to right, white 0%, white 50%, white 50%, white 100%);
        }