.banner{  width:100%;   float:left;  text-align:center; overflow:hidden; }
#bn {height: 340px;	position: relative;	overflow: hidden; margin-right: auto;	margin-left: auto;}
#bn .tu {text-align: center;display: block;	margin-right: auto;	margin-left: auto;}
#bn .tu .ss1{ width:100%; height:340px;  display:block; }
#bn .tu .ss2{  width:100%; height:340px; display:block; }
#bn .tu .ss3{  width:100%; height:340px;  display:block; }

#bn .tu .lianjie {display: block;}
#bn #hao .xu {background-image: url(../images/imagehei.png);display: inline;float: left;height: 32px;width: 32px;line-height: 32px;color: #FFFFFF;font-size: 16px;font-weight: bolder;cursor:pointer;text-align:center;color:#02a625;}
#bn #hao {position: absolute;left:800px;height: 32px;width: 330px;z-index: 300;bottom: 0px;}
#bn #hao a{background-image:url(../images/imagehei.png);display:inline;float:left;height:32px;width:32px;line-height:32px;font-size:16px;font-weight:bold;cursor:pointer;text-align:center;}
#bn #hao{position:absolute;right:50px;width:200px;height:32px;z-index:300;bottom:0px;}
#bn #hao a.on{background:url(../images/imagefen.png);color:#fff;}