.switch {
        position: relative;
        display: inline-block;
        width: 45px;
        height: 22px;
    }

    .switch input {
        opacity: 0;
        width: 0;
        height: 0;
    }

    .slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: #ccc;
        transition: .4s;
        border-radius: 22px;
    }

    .slider:before {
        position: absolute;
        content: "";
        height: 18px;
        width: 18px;
        left: 2px;
        bottom: 2px;
        background-color: white;
        transition: .4s;
        border-radius: 50%;
    }

    input:checked+.slider {
        background-color: #28a745;
    }

    input:checked+.slider:before {
        transform: translateX(23px);
    }