.mx-switch {
  width: 51px;
  height: 31px;
  display: inline-block;
  box-sizing: border-box;
  position: relative;
  transform-origin: left top;

  .switch-box {
    width: 100%;
    height: 100%;
    border-radius: 31px;
    box-sizing: border-box;
    background: #e5e5e5;
    z-index: 0;
    margin: 0;
    padding: 0;
    appearance: none;
    border: 0;
    cursor: pointer;
    position: relative;
    transition: all 300ms;
    &:before {
      content: ' ';
      position: absolute;
      left: 1px;
      top: 1px;
      width: 49px;
      height: 29px;
      border-radius: 29px;
      box-sizing: border-box;
      background: #fff;
      z-index: 1;
      transition: all 200ms;
      transform: scale(1, 1);
    }
    &:after {
      content: ' ';
      height: 28px;
      width: 28px;
      border-radius: 28px;
      background: #fff;
      position: absolute;
      z-index: 2;
      left: 1px;
      top: 1px;
      transform: translateX(0px);
      transition: all 200ms;
      box-shadow: 2px 2px 2px hsla(0,0%,39%,.2);
    }

  }

  input[type="checkbox"] {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    border: 0 none;
    appearance: none;
    &:checked {
      &+ .switch-box {
        background: #4dd865;
        &:before {
          transform: scale(0);
        }
        &:after {
          transform: translateX(20px);
        }
      }
    }
    &:disabled {
      &+ .switch-box {
        opacity: .3;
      }
    }
  }

}