旋轉： 

<div class="lds-hourglass"></div>

.lds-hourglass {
	display:inline-block;
	position:relative;
	width:72px;
	height:72px
}
.lds-hourglass:after {
	content:" ";
	display:block;
	border-radius:50%;
	width:0;
	height:0;
	margin:6px;
	box-sizing:border-box;
	border:36px solid #ff8686;
	border-color:#ffabab transparent #35999e;
	animation:lds-hourglass 1.2s infinite
}
@keyframes lds-hourglass {
	0% {
	transform:rotate(0);
	animation-timing-function:cubic-bezier(.55,.055,.675,.19)
}
50% {
	transform:rotate(900deg);
	animation-timing-function:cubic-bezier(.215,.61,.355,1)
}
100% {
	transform:rotate(1800deg)
}
}