div.pagemenu21{
width:100%;
margin:15px 0;
}

div.pagemenu21 a{
display:block;
width:180px;
margin:0 auto;
text-decoration: none;
height:40px;
font:14px/30px 'microsoft yahei',simsun,Verdana,Arial;
text-align:center;
background:url(../images/pagemenu21.png) 0px 0px no-repeat;
color:#505050;
}

div.pagemenu21 a:hover{
background:url(../images/pagemenu21_now.png) 0px 0px no-repeat;
color:#ff0000;
}