animate.css/source/bouncing_entrances/bounceIn.css

@keyframes bounceIn {
	0% {
		opacity: 0;
		transform: scale(.3);
	}

	50% {
		opacity: 1;
		transform: scale(1.05);
	}

	70% {
		transform: scale(.9);
	}

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

.bounceIn {
	animation-name: bounceIn;
}