.slideOutLeft {
  -webkit-animation-name: slideOutLeft;
  animation-name: slideOutLeft;
}

@include keyframes(slideOutLeft) {
  0% {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }

  100% {
    visibility: hidden;
    -webkit-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
  }
}