body{ margin:0px; padding:0px; font-size:14px; font-family:Arial, Helvetica, sans-serif;}
img { border:0;}
ul,li{ margin:0px; padding:0px; list-style-type:none;}
h2,h3{ margin:0px; padding:0px; line-height:normal; font-size:12px; font-weight:normal;}
.bddcx_t td{ padding:10px 5px; }

.bg_sz{ background:url(../images/sz.gif) repeat-y;}

.tu_ul{width:960px; height:auto; padding-left:30px;}

.tu_ul li{ float:left; width:279px; height:270px; margin:10px 15px;}
.tu_ul li h2{width:253px; height:183px; padding:13px; background:url(../images/t_bg.gif) no-repeat;}
.tu_ul li h3{width:279px; height:50px; line-height:50px; text-align:center; background:url(../images/zi_bg.gif) no-repeat; font-size:14px;}


.tu_ul_b{width:871; height:auto;}

.tu_ul_b li{ float:left; width:279px; height:220px; margin:10px 5px; }
.tu_ul_b li h2{width:253px; height:183px; padding:13px; background:url(../images/t_bg.gif) no-repeat;}
<!--.tu_ul_b li h3{width:279px; height:50px; line-height:50px; text-align:center; background:url(../images/zi_bg.gif) no-repeat; font-size:14px;}-->

.tiao_bg{ background:url(../images/zxtzs_b_19.gif) repeat-y;}
.tiao_bg_b{ background:url(../images/zxtzs_b_17.gif) repeat-y;}

.bg_top{width:1024px;height:32px; padding-top:5px;margin:5px auto; background:url(../images/bg_top.gif) repeat-x;  }
.bg_top ul { width:620px; height:32px; margin:0px auto;}
.bg_top ul li a{ width:70px; margin:0px 10px; line-height:32px; font-weight:bold; }
.bg_top ul li a:link,.bg_top ul li a:visited{ color:#FFFFFF; text-decoration:none;}
.bg_top ul li a:hover,.bg_top ul li a:active{ color:#d8d8d8; text-decoration:none;}

.bg_topa{width:1000px;height:32px; padding-top:5px;margin:5px auto; background:url(../images/bg_top.gif) repeat-x;  }
.bg_topa ul { width:620px; height:32px; margin:0px auto;}
.bg_topa ul li a{ width:70px; margin:0px 10px; line-height:32px; font-weight:bold; }
.bg_topa ul li a:link,.bg_topa ul li a:visited{ color:#FFFFFF; text-decoration:none;}
.bg_topa ul li a:hover,.bg_topa ul li a:active{ color:#d8d8d8; text-decoration:none;}


.lan a:link,.lan a:visited{ color:#0000FF; text-decoration:none;}
.lan a:hover,.lan a:active{ color:#0000FF; text-decoration:none;}