旋转： 

 

<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)
}
}