Bouncing animation from WordPress.com

bounce.css

.cdm-subtle-focus {
	-webkit-animation: bounce .7s 1;
	animation: bounce .7s 1;
	-webkit-transform-origin: center bottom;
	transform-origin: center bottom;
}
	
@-webkit-keyframes bounce {
	from, 20%, 53%, 80%, to {
		-webkit-animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
		-webkit-transform: translate3d(0,0,0);
	}

	40%, 43% {
		-webkit-animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
		-webkit-transform: translate3d(0, -12px, 0);
}

	70% {
		-webkit-animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
		-webkit-transform: translate3d(0, -6px, 0);
	}

	90% {
		-webkit-transform: translate3d(0,-1px,0);
	}
}
	
@keyframes bounce {
	from, 20%, 53%, 80%, to {
		animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
		transform: translate3d(0,0,0);
	}

	40%, 43% {
		animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
		transform: translate3d(0, -12px, 0);
	}

	70% {
		animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
		transform: translate3d(0, -6px, 0);
	}

	90% {
		transform: translate3d(0,-1px,0);
	}
}