simple-switch.less

.simple-switch-outter {
    width: 50px;
    height: 30px;
    background-color: #fff;
    border: 1px solid #dfdfdf;
    cursor: pointer;
    display: inline-block;
    position: relative;
    vertical-align: middle;
    border-radius: 20px;
    box-sizing: content-box;
    background-clip: content-box;

    .simple-switch {
        display: none;
    }

    .simple-switch-circle {
        background: #fff;
        border-radius: 100%;
        box-shadow: 0 1px 3px rgba(0,0,0,0.4);
        height: 30px;
        position: absolute;
        top: 0;
        width: 30px;
    }

    &.unchecked {
        box-shadow: rgb(223, 223, 223) 0px 0px 0px 0px inset;
        border-color: rgb(223, 223, 223);
        transition: border 0.4s, box-shadow 0.4s;
        background-color: rgb(255, 255, 255);

        .simple-switch-circle {
            left: 0px;
            transition: background-color 0.4s, left 0.2s;
        }
    }

    &.checked {
        border-color: rgb(100, 189, 99);
        box-shadow: rgb(100, 189, 99) 0px 0px 0px 16px inset;
        transition: border 0.4s, box-shadow 0.4s, background-color 1.2s;
        background-color: rgb(100, 189, 99);

        .simple-switch-circle {
            left: 20px;
            transition: background-color 0.4s, left 0.2s;
            background-color: rgb(255, 255, 255);
        }
    }
}