animate.css/source/fading_entrances/fadeInDownBig.css

@keyframes fadeInDownBig {
  from {
    opacity: 0;
    transform: translate3d(0, -2000px, 0);
  }

  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.fadeInDownBig {
  animation-name: fadeInDownBig;
}