.container{width:100%; margin:0 auto;position:relative;}


.nav{
	position: abolute;
	z-index: 9;
	width: 100%;
	left: 0px;
	top: 0px;
	position: absolute;
}

.nav{ background:#F6F6F6; padding-top:10px; height:auto; overflow:hidden; position:abolute;z-index:9;width:100%;left:0px;top:280px;position:absolute;}

.nav.selected{position:fixed;width:100%;left:0px;top:0px; }


.nav .menu{width:1002px;height:26px;float:left;overflow:hidden;position:relative;}

.nav .menu li{float:left; padding-left:20px; padding-right:20px; height:26px; line-height:26px;}


.nav .menu li a{color:#333;font-size:14px;  height:26px;display:block;line-height:26px;text-align:center;}

.nav .menu li a span{display:block;height:26px;text-align:center; }

.nav .menu li a em{display:block;height:26px;text-align:center;  }

.nav .menu li a:hover{margin-top:-26px;}

/*.nav .menu li a.selected{margin-top:-80px;}*/

.nav .menu li.current a{margin-top:-26px;}

.nav .menu li.back{position:absolute;left:0px;bottom:0px;width:0px;height:0px;}

.nav .menu li.mu_1 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_2 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_3 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_4 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_5 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_6 span{ background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_7 span{background:url(../otktu/aboutdhbj.jpg) left top repeat-x; font-size:12px; color:#666; text-align:center;}


.nav .menu li.mu_1 em{ background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_2 em{ background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_3 em{ background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_4 em{background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}

.nav .menu li.mu_5 em{background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}
.nav .menu li.mu_6 em{background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}
.nav .menu li.mu_7 em{background:url(../otktu/aboutdhbj2.jpg) center top no-repeat; font-size:12px; color:#666; text-align:center;}