.lds-dual-ring {
	display: inline-block;
	width: 64px;
	height: 64px;
}
.lds-dual-ring:after {
	content: ' ';
	display: block;
	width: 46px;
	height: 46px;
	margin: 1px;
	border-radius: 50%;
	border: 5px solid #fff;
	border-color: #42b983 transparent #42b983 transparent;//可修改颜色
	animation: lds-dual-ring 1.2s linear infinite;
}
@keyframes lds-dual-ring {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}