.bottom{ width:948px; height:auto; margin:21px auto;}
.bottom_nav{ width:946px; height:26px; border:1px solid #C1C1C1;margin-bottom:10px;}
.bottom_nav1{ width:944px; height:24px; border:1px solid #fff; background:#F1F1F1; text-align:center; font-weight:bold; line-height:24px; color:#666; }
.bottom_nav1 a{ color:#666;}
.bottom_txt{ width:100%; height:auto; text-align:center;}