#menumain_dolphin{
   margin:0;
   white-space:nowrap;
   overflow:hidden;
   height:49px;
   background:url(menubg.jpg) 0 0 repeat-x;
}

#menumain_dolphin .mainmenuiner_dolphin {
    height:49px;
	padding:0;
    line-height:49px;
    overflow: hidden;
    margin:0px 0px 0px 50px; 
}

#menumain_dolphin a.menumain_dolphin:link,#menumain_dolphin a.menumain_dolphin:active,#menumain_dolphin a.menumain_dolphin:visited{
   display:block;
   float:left;
   height:49px;
   text-decoration: none;
   text-align:center;
   width:100px;
   color:#fff;
   font:14px/50px 'Microsoft YaHei','SimSun',Arial,Sans-Serif;
   margin:0px 0px 0px -2px;
   background:url(menu.jpg) 0 0 no-repeat;
}

#menumain_dolphin a.menumain_dolphin:hover{
   display:block;
   float:left;
   height:49px;
   color:#fff; 
   text-decoration: none;
   text-align:center;
   width:100px;
   margin:0px 0px 0px -2px;
}