*{ margin:0; padding:0; font-size:12px;}
li{ list-style:none}
a{ text-decoration:none}
body{   margin:0 auto; position:relative}
table {
width: 960px;
}
.big_top{ height:370px; margin:0 auto; padding-top:240px;}
.big_top .top_box{ height:400px; width:960px; margin:0 auto; background-color:white; padding-top:10px; padding-left:20px; padding-right:20px;}


.logoline{ width:1000px; height:104px; overflow:hidden; position:absolute; left:212px; top:190px;}
.logoline .logo_box{ float: left; height:104px; width:418px;}	 
.logoline .logo_box img{ height:100px; width:418px;}
.logoline .biaoyu{ float:left; height:104px; width:550px; margin-top:70px; margin-left:20px;}
 
.four{ height:221px; width:870px; margin-top:5px; border:#5ac0e6 3px solid; overflow:hidden;}  
.four img{ float:left; margin:8px 5px;width:280px;} 

 .xuanxiang{ width:960px; overflow:hidden}
.xuanxiang .left{ float:left;  width:450px;}
.xuanxiang .left li{ height:22px; width:450px; background-image:url(images/wujiao.jpg); background-repeat:no-repeat; background-position:left; margin-top:5px; border-bottom:#c7c6c5 1px dashed}
.xuanxiang .left li a{ margin-left:30px;}
.xuanxiang right{ float:left;  width:450px;}
.xuanxiang .right li{ height:22px; width:450px; background-image:url(images/wujiao.jpg); background-repeat:no-repeat; background-position:left; margin-top:5px; border-bottom:#c7c6c5 1px dashed}
.xuanxiang .right li a{ margin-left:30px;}

.six{ width:960px; }
.six li{ height:30px}
.six .ma{ margin:0 auto; height:260px; width:251px;}

.footer{width: 960px;
margin: 0 auto;}

.neirong{; width:960px; margin:0 auto; border:#acbfc3 2px solid; border-bottom:none; border-top:none; padding:20px}
 .neirong .xuzhi{ width:800px; padding-right:160px; margin-bottom:50px; margin:0 auto} 
 .jianjie{ width:960px; margin:0 auto}
.jianjie .nameline{ height:26px; width:960px; overflow:hidden;}
.jianjie .nameline .left{ float:left; height:26px; width:210px; background-image:url(../images/jianjie_bg_03.jpg); line-height:26px; text-align:center}
.jianjie .nameline .left a{ color:white; font-size:16px; font-family:"微软雅黑"} 
.jianjie .nameline .right{ float:right; height:26px; width:300px; line-height:26px;}
.jianjie .nameline .right a{ color:red; font-size:14px; }
.jianjie .zhu{ height:70px; width:960px; border-bottom:#d4dedd 1px solid}
.jianjie .zhu li{ height:20px; width:900px; line-height:20px}
.jianjie .zhu li a{ color:#337186; font-size:14px;}
.selected {
float: left;
padding: 5px 2px 2px 2px;
width: 150px;
text-align: center;
vertical-align: middle;
cursor: pointer;
border-top: solid 1px #A9E1F3;
border-right: solid 1px #A9E1F3;
border-left: solid 1px #A9E1F3;
background:  url(http://www.china-huaxue.com/images/tab1.jpg) repeat-x;
color: rgb(255, 255, 255);
font-weight: bold;
}
.normal {
float: left;
padding: 5px 2px 2px 2px;
width: 150px;
text-align: center;
vertical-align: middle;
cursor: pointer;
border-right: solid 1px #A9E1F3;
border-top: solid 1px #A9E1F3;
border-left: solid 1px #A9E1F3;
background: url(huanlexue/title_c.gif) repeat-x;
border-collapse: collapse;
color: rgb(0, 194, 255);
font-weight: bold;
}
.zixun_box{ height:180px; width:960px; overflow:hidden;}
.zixun_box .left{ width:430px; height:180px; float:left;margin-left: 40px;}
.zixun_box .left .one { height:37px; width:296px;  margin-bottom:5px;background-image: url(../images/big.jpg);}
.zixun_box .left .one span{color: white;font-size: 20px;line-height: 40px;margin-left: 35px;}
.zixun_box .left .zixin{ overflow:hidden; height:120px; width:450px;}
.zixun_box .left .zixin div{ float:left}
.zixun_box .left .zixin div img{ width:130px; height:100px;}
.zixun_box .left .zixin .news{ margin-left:20px;}
.zixun_box .left .zixin .news li{ height:22px; width:300px; line-height:22px;}
.zixun_box .left .zixin .news li a{ font-size:12px;}

.zixun_box .right{width:430px; height:180px; float:right}
.zixun_box .right .two{ height:37px; width:181px; margin-bottom:5px;background-image: url(../images/small.jpg);}
.zixun_box .right .two span{color: white;font-size: 20px;line-height: 40px;margin-left: 22px;}
.zixun_box .right .zixin{ overflow:hidden; height:120px; width:450px;}
.zixun_box .right .zixin div{ float:left}
.zixun_box .right .zixin div img{ width:130px; height:100px;}
.zixun_box .right .zixin .news{ margin-left:20px;}
.zixun_box .right .zixin .news li{ height:22px; width:300px; line-height:22px;}
.zixun_box .right .zixin .news li a{ font-size:12px;}