#menumain{
   margin:0;
   padding-left:0px;
   white-space:nowrap;
   overflow:hidden;
   height:39px;
   background:#e4e5e8;
}


#menumain a.menumain:link,#menumain a.menumain:active,#menumain a.menumain:visited{
   display:block;
   float:left;
   color: #555; 
   width:127px;
   height:39px;
   text-decoration: none;
   text-align:center;
   font:bold 17px/40px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
   background:url(a.jpg) 0px 0px repeat-x;
   margin:0px;
}

#menumain a.menumain_current{
   display:block;
   float:left;
   color: #555; 
   width:127px;
   height:39px;
   text-decoration: none;
   text-align:center;
   font:bold 17px/40px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
   background:url(3.html) 0px 0px repeat-x;
   margin:0px;
} 

#menumain a.menumain:hover {
   display:block;
   float:left;
   color: #fff; 
   width:127px;
   height:39px;
   text-decoration: none;
   text-align:center;
   font:bold 17px/40px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
   background:#000;
   margin:0px;
}