e:before {
  content: '';
  position: absolute;
  top: 50%;
  margin-top: -7px;
  margin-left: -10px;
  height: 20px;
  width: 4px;
  background: #fff;
  left: 50%;
  transform: rotate(-215deg);
  border-radius: 2px;
}

@keyframes toggle {
  0% {
    transform: translate3d(-75%,-50%,0);
    border-right: 0 solid #BBBBBB;
    border-left: 0 solid #BBBBBB;
    background: #BBBBBB;
    border-radius: 50% 50% 50% 50% / 50% 50% 50% 50%;
    height: 100px;
  }

  20% {
    border-right: 0 solid #BBBBBB;
    borde