
* {margin:0; padding:0; border:0px;}
body {  margin-left: 0px;	margin-top: 0px; argin-right: 0px;	margin-bottom: 0px;	word-spacing:0px; letter-spacing:0px; }
body,td,div {color:#919191;font:12px; font-family:"微软雅黑", "宋体", arial, tahoma; line-height:180%;word-spacing:3px; }
input {vertical-align:middle; border: 1px #7F9DB9 solid;} 
a,area {blr:expression(this.onFocus=this.blur());outline: none;}
li {list-style-type:none;}
.clear { clear:both; height:0; line-height:0px; font-size:0;}



.bai {color:#fff;}
.bai a:link { color: #fff; text-decoration: none} 
.bai a:visited { color: #fff; text-decoration: none} 
.bai a:hover { color: #fff; text-decoration: underline} 
.bai a:active { color: #fff; text-decoration: underline}

#nav
{ font-size:14px;
 width: 100%; height:80px;
 background-color: #eee; border-bottom:2px #fff solid; color:#FFF;
 overflow:visible;
 position: fixed;/*固定作用*/
 top: 0px;
 /*ie6下样式，加下划线表示只针对ie6 的hack */
 _position:absolute;/* 把导航栏位置定义为绝对位置  关键*/
 _top: expression(documentElement.scrollTop + "px"); /* 把导航栏位置放在浏览器垂直滚动条的顶端  关键 */
 z-index:9999; /* 让导航栏浮在网页的高层位置，遇到flash和图片时候也能始终保持最外层 */
}
.dh {width:900px; margin:0 auto; padding-top:10px;}
.dh li {width:110px; float:left; text-align:center; background-color:#FF6600; margin-right:10px; margin-bottom:10px;}



.app_xz{ width:100%;margin-top:84px; text-align:center;}

.app_1020{ width:900px;margin:0 auto; position:relative;}