body{ font-size:14px;margin:0px auto; padding-bottom:0px; padding-left:0px; padding-right:0px; padding-top:0px; text-align:center;}
div{ margin:0px auto;}
ul{margin:0px;padding:0px;clear:both; overflow:hidden;}
li{ list-style:none; float:left;}
.marb5{ width:100%;height:5px;clear:both; overflow:hidden;}
.head{ width:990px; margin:0px auto;}
.head img{ border:0px;}
.head .logo{ width:300px; margin-right:60px;}
.head .btn{ width:70px; height:70px; text-align:center; line-height:20px; margin-left:20px;}
.head .btn a:hover{width:68px; height:68px;border:#b5daff 1px solid; background:#DFF4FF;display:block;}
.headnav{ width:990px; height:48px; background:url(/jscjcongye/images/nav_bg.gif) repeat-x;}
.nav_l{ width:9px; height:48px; background:url(/jscjcongye/images/nav_l_bg.gif) no-repeat;}
.nav_r{ width:9px; height:48px; background:url(/jscjcongye/images/nav_r_bg.gif) no-repeat; float:right; }
.menu{ width:90px;height:48px;line-height:48px;font-weight:bold; background:url(/jscjcongye/images/nav_li_right.gif) no-repeat right center;}
.menu a:link{ color:#FFFFFF; text-decoration:none;font-size:14px;line-height:48px;}
.menu a:visited{ color:#FFFFFF; text-decoration:none;font-size:14px;line-height:48px;}
.menu a:hover{ color:#FFFF00; text-decoration:none;font-size:14px;line-height:48px;}
.menu a:active{ color:#FFFFFF; text-decoration:none;font-size:14px;line-height:48px;}