* {
	padding: 0;
	margin: 0;
}

body {
	background: #323232;
	font-size: 12px;
	font-family: "微软雅黑";
	margin:0 auto;
}
ul,li{
	list-style: none;
}
.tab{
	width: 1160px;
	margin:0 auto;
}
.tab .tab-nav{
	height:102px;
}
.tab .tab-nav li{
	float: left;
	margin-right: 75px;
}

.tab .tab-nav li a{
	display: block;
	height: 102px;
	padding: 0 20px;
	color: #ffffff;
	text-decoration: none;
}

.tab .content-wrap{
	padding: 5px;
	height: 200px;
}
.tab .content-wrap img{
	width: 100%;
	height: 100%;
}
.tab .content-wrap .content-item{
	width: 851px;
	margin:0 auto;
	position:absolute;
	height: 191px;
	display: none;
}
.tab .content-wrap .current{
	display: block;
}