.switch {
    display: inline-block;
    height: 17px;
    position: relative;
    width: 30px;
    margin: 5px 5px 0 0;
}

    .switch input {
        display: none;
    }

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

    .slider:before {
        background-color: #727272;
        bottom: 2px;
        content: "";
        height: 13px;
        left: 2px;
        position: absolute;
        transition: .4s;
        width: 13px;
    }

input:checked + .slider {
    background-color: #383838;
}

    input:checked + .slider:before {
        transform: translateX(13px);
    }

.slider.round {
    border-radius: 17px;
}

    .slider.round:before {
        border-radius: 50%;
    }