.spinner17 {
	width: 40px;
	height: 40px;
	display: inline-block;
	background-color: #42b983; //可修改颜色

	border-radius: 100%;
	-webkit-animation: sk-scaleout 1.0s infinite ease-in-out;
	animation: sk-scaleout 1.0s infinite ease-in-out;
}

@-webkit-keyframes sk-scaleout {
	0% {
		-webkit-transform: scale(0)
	}

	100% {
		-webkit-transform: scale(1.0);
		opacity: 0;
	}
}

@keyframes sk-scaleout {
	0% {
		-webkit-transform: scale(0);
		transform: scale(0);
	}

	100% {
		-webkit-transform: scale(1.0);
		transform: scale(1.0);
		opacity: 0;
	}
}