.modal-mask{
	position: fixed;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	background: rgba(0,0,0,.49);
	z-index: 99;
}
.close{
	width: 60rpx;
	height: 60rpx;
	position: fixed;
	left: 0;
	right: 0;
	top: 860rpx;
	bottom: 0;
	margin: auto;
	z-index: 1000;
}
.close image{
	width: 100%;
	height: 100%;
}