animate.css/source/fading_entrances/fadeInLeftBig.css

@keyframes fadeInLeftBig {
  0% {
    opacity: 0;
    transform: translateX(-2000px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.fadeInLeftBig {
  animation-name: fadeInLeftBig;
}