animate.css/source/zooming_exits/zoomOutLeft.css

@keyframes zoomOutLeft {
  40% {
    opacity: 1;
    transform: scale(.475) translateX(42px);
    animation-timing-function: linear;
  }
  
  100% {
    opacity: 0;
    transform: scale(.1) translateX(-2000px);
    transform-origin: left center;
  }
}

.zoomOutLeft {
  animation-name: zoomOutLeft;
}