#menumain_dolphin{
   margin:0;
   white-space:nowrap;
   overflow:hidden;
   height:42px;
}

#menumain_dolphin .mainmenuiner_dolphin {
    height:42px;
	padding:0;
    overflow: hidden;
    margin:0px; 
}

#menumain_dolphin a.menumain_dolphin:link,#menumain_dolphin a.menumain_dolphin:active,#menumain_dolphin a.menumain_dolphin:visited{
   display:block;
   float:left;
   height:42px;
   text-decoration: none;
   text-align:center;
   width:100px;
   color:#fff;
   font:14px/43px 'SimSun',Arial,Sans-Serif;
   background:url(../images/menu.png) 0 0 no-repeat;
   margin:0px;
}

#menumain_dolphin a.menumain_dolphin:hover{
   display:block;
   float:left;
   height:42px;
   color:#f0f0f0; 
   text-decoration: none;
   text-align:center;
   width:100px;
   font:14px/43px 'SimSun',Arial,Sans-Serif;
   background:url(../images/menunow.png) 0 0 no-repeat;
   margin:0px;
}