#beiJ {
	width:100%;
	height:100%;
	background:#000;
	opacity:0.7;
	position:fixed;
	top:0;
	left:0;
}
#tanChuang {
	width:800px;
	height:400px;
	position:fixed;
	top:50%;
	left:50%;
	margin:-200px 0 0 -400px;
	background:#222;
	box-shadow:0px 0px 20px #111;
	color:#fff;
}
#jiShi {
	width:180px;
	height:180px;
	border:10px solid #fff;
	border-radius:50%;
	margin:100px auto;
	font-size:150px;
	font-weight:bold;
	font-family:"arial";
	text-align:center;
	line-height:180px;
	position:absolute;
	top:0%;
	left:calc(50% - 100px);
}
#tanChuang img {
	width:100%;
	height:100%;
}
#tanChuang span {
	width:40px;
	height:40px;
	font-size:40px;
	position:absolute;
	top:0;
	right:0;
	cursor:pointer
}