animate.css/source/back_entrances/backInDown.css

@keyframes backInDown {
  0% {
    transform: translateY(-1200px) scale(0.7);
    opacity: 0.7;
  }

  80% {
    transform: translateY(0px) scale(0.7);
    opacity: 0.7;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.backInDown {
  animation-name: backInDown;
}