animate.css/source/zooming_exits/zoomOutLeft.css

@keyframes zoomOutLeft {
  40% {
    opacity: 1;
    transform: scale3d(.475, .475, .475) translate3d(42px, 0, 0);
  }

  100% {
    opacity: 0;
    transform: scale(.1) translate3d(-2000px, 0, 0);
    transform-origin: left center;
  }
}

.zoomOutLeft {
  animation-name: zoomOutLeft;
}