<div class="cp_keyframes"></div>

.cp_keyframes {
	margin: 0 auto;
	background: #29b6f6;
	border-radius: 50%;
	position: relative;
	top: 0;
	width: 60px;
	height: 60px;
	-webkit-animation: keyframes 2s infinite;
	        animation: keyframes 2s infinite;
}
@-webkit-keyframes keyframes {
	0% {
		top: 100px;
		-webkit-animation-timing-function: ease-out;
		        animation-timing-function: ease-out;
	}
	25% {
		top: 50px;
		height: 60px;
		-webkit-animation-timing-function: ease-in;
		        animation-timing-function: ease-in;
	}
	50% {
		top: 150px;
		height: 50px;
		-webkit-animation-timing-function: ease-out;
		        animation-timing-function: ease-out;
	}
	75% {
		top: 50px;
		height: 60px;
		-webkit-animation-timing-function: ease-in;
		        animation-timing-function: ease-in;
	}
	100% {
		top: 100px;
	}
}
@keyframes keyframes {
	0% {
		top: 100px;
		-webkit-animation-timing-function: ease-out;
		        animation-timing-function: ease-out;
	}
	25% {
		top: 50px;
		height: 60px;
		-webkit-animation-timing-function: ease-in;
		        animation-timing-function: ease-in;
	}
	50% {
		top: 150px;
		height: 50px;
		-webkit-animation-timing-function: ease-out;
		        animation-timing-function: ease-out;
	}
	75% {
		top: 50px;
		height: 60px;
		-webkit-animation-timing-function: ease-in;
		        animation-timing-function: ease-in;
	}
	100% {
		top: 100px;
	}
}