

.tanChuang{
	position: fixed;
	width:100%;
	height:100%;
	background-color:rgba(0,0,0,.50);
	filter:progid:DXImageTransform.Microsoft.gradient(GradientType='0',startcolorstr='#4c000000',endcolorstr='#4c000000');
	top:0;
	left:0;
	z-index:100000;
}
.tanBox{
	position:fixed;
	top:50%;
	left:50%;
	margin-left:-250px;
	margin-top:-160px;
	width:500px;
	min-height: 50px;
	background: #fff;
}
.tanBox .close{
	display:block;
	float: right;
	margin-right:0;
	margin-top:-17px;
	cursor:pointer;
}
