:root {
    --nonchecked-color: #f3f1f1;
    --checked-color: #38f;
  }
  .switch {
    -webkit-appearance: none;
    position: relative;
    border-radius: 10px;
    width: 32px;
    height: 20px;
    border: solid 1px var(--nonchecked-color);
    background: var(--nonchecked-color);
    overflow: hidden;
    transition: all .1s ease-out;
    cursor: pointer;
  }
  .switch:checked {
    background-image: linear-gradient(310deg, #4a07f6 0%, #8c1cfe 100%);
    border: solid 1px #5d10c9;
  }
  .switch:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.2);
  }
  .switch:after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    transition: all .1s ease-out;
  }
  .switch:checked:after {
    left: 14px;
  }