nav_class ul {
  list-style: none;
  padding-left: 0;
  margin-top: 0;
  margin-bottom: 0;
}

.nav_class{
  width: 1200px; 
  color: #fff;
  margin:0px auto;
  font-family:Roboto Condensed-Bold;
  margin-top:5px;
}
.nav_class a {
  display: block;
  padding: 0px;
  line-height: inherit;
  cursor: pointer;
  color:#fff; 
}

.nav_class a:hover{
 color:#003e87; 
 }
.nav_menu {
  line-height: 45px;
  font-weight: 700;
}
.nav_menu-item {
  display: inline-block;
  position: relative;
  text-align:center;
  font-size:24px;
  font-weight:normal;
  line-height:45px;
  
  padding:0 25px;
  background:url(http://grs.zju.edu.cn/english/template/images/line.jpg) no-repeat right center;
  }
  
.nav_menu-item:last-child{ background:none;}
  
.nav_menu-item:hover {
background-color:#FFFFFF;
 
  color:#003e87;  
}
.nav_menu-item:hover a{color:#003e87; }
.nav_menu-item:hover .nav_submenu {
  display: block;
}
.nav_submenu {
  font-weight: 300;
  text-transform: none;
  display: none;
  position: absolute;
  font-size:22px;
  background-color: #fff;
  text-align:left;
  width:380px;
  text-indent: 1em;
  /*box-shadow:2px 2px 10px #909090;*/
box-shadow:0px 4px 5px rgba(0,0,0,0.4);
 /* background-color:rgba(250,250,250,0.8);*/
   padding:0px 0px;
  /*border:#f4f4f4 solid 3px;*/
  z-index:99999999999;
  margin-left:-25px;
  margin-top:0px;
   font-family:Roboto Condensed-Bold;
   }
.nav_submenu a{  color:#003e87; font-size:22px;    font-family: 'RobotoCondensed-Regular';}
.nav_submenu-item{ height:60px; line-height:60px;}
.nav_submenu-item:hover {
    background-color: #003e87; color:#FFFFFF; text-decoration:underline;
}
.nav_submenu-item:hover a{color:#FFFFFF;}
.active{   background-color:#FFFFFF; color:#003e87; height:45px;  }
.active a{ color:#003e87; }

.nav .w1200 .nav_class .nav_menu .i2 .i2-4 {

}
.nav .w1200 .nav_class .nav_menu .i2 .i2-5 {

}
.nav .w1200 .nav_class .nav_menu .i4 .i4-3 {
    display: none;
}