#menumain_dolphin{
   margin:0;
   white-space:nowrap;
   overflow:hidden;
   height:30px;
}

#menumain_dolphin .mainmenuiner {
    height:30px;
	padding:0;
    line-height:44px;
    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;
   text-decoration:none;
   text-align:center;
   width:107px;
   color:#4e4e4e;
   font:bold 14px/30px Microsoft YaHei,SimSun,Arial,Sans-Serif;
   background:url(qian.jpg) 0px 0px no-repeat;
   margin:0px;
}

#menumain_dolphin a.menumain_dolphin:hover{
   display:block;
   float:left;
   color:#fff; 
   text-decoration:none;
   text-align:center;
   width:107px;
   font:bold 14px/30px Microsoft YaHei,SimSun,Arial,Sans-Serif;
   background:url(hou.jpg) 0px 0px no-repeat;
   margin:0px;
}