animate.css/source/fading_entrances/fadeInDown.css

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translate3d(0, -100%, 0);
  }

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

.fadeInDown {
  animation-name: fadeInDown;
}