#menumain{
   margin:0;
   white-space:nowrap;
   overflow:hidden;
   width:100%;
   color:#fff;
}

#menumain .menumain{
   float:left;
   width:99px;
   height:69px;
   color:#fff;
   line-height:30px;
   text-align:center;
   margin:-1px 1px 1px -1px ;
}


#menumain .menumain a {
   display:block;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
}

#menumain .menumain a:hover {
   color: #ff6600;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
}

#menumain .menumain a.class_1{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu1.png) 0px -2px no-repeat;
}

#menumain .menumain a.class_1:hover{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu2.png) 0px -2px no-repeat;
}

#menumain .menumain a.class_2{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu1.png) -84px -2px no-repeat;
}

#menumain .menumain a.class_2:hover{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu2.png) -84px -2px no-repeat;
} 

#menumain .menumain a.class_3{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu1.png) -168px -2px no-repeat;
}

#menumain .menumain a.class_3:hover{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu2.png) -168px -2px no-repeat;
} 

#menumain .menumain a.class_4{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu1.png) -252px -2px no-repeat;
}

#menumain .menumain a.class_4:hover{
   display:block;
   width:84px;
   height:68px;
   font:bold 16px/30px Microsoft JhengHei,Microsoft Yahei,Arial,PMingLiU;
   text-decoration: none;
   line-height:30px;
   background:url(../images/menu2.png) -252px -2px no-repeat;
}