body {font-family:微软雅黑;font-size:13px;line-height:1.5; margin:0px; color:#333333;}

A:link {COLOR: #666666; font-size:13px;TEXT-DECORATION: none}
A:visited {COLOR: #666666; font-size:13px;TEXT-DECORATION: none}
A:hover {COLOR: #438DD6; font-size:13px;TEXT-DECORATION: none}

A.hei:link {COLOR: #222222; font-size:13px;TEXT-DECORATION: none}
A.hei:visited {COLOR: #222222; font-size:13px;TEXT-DECORATION: none}
A.hei:hover {COLOR: #222222; font-size:13px;TEXT-DECORATION: none}

A.big_bold:link {COLOR: #438DD6; font-size:14px;font-weight:bold;TEXT-DECORATION: none}
A.big_bold:visited {COLOR: #438DD6; font-size:14px;font-weight:bold;TEXT-DECORATION: none}
A.big_bold:hover {COLOR: #222222; font-size:14px;font-weight:bold;TEXT-DECORATION: none}

.td1{font-size:18px;font-weight:bold;}
.td2{font-size:16px;}
.td3{font-size:15px;}
.td4{font-size:12px;}
.tdblue{COLOR: #008CD6;}

.table_y {border-radius: 20px 20px 20px 20px;}
.table_y_small {border-radius: 5px 5px 5px 5px;}

.tdbig {height:35px;vertical-align:bottom;border-bottom:1px solid #ebebeb;font-weight:bold;}

.tddaohang1 {font-size:16px;border-bottom:2px solid #eaeaea;}
.tdbeijing1 {background-color:#FAE8E8;}


#nav{
  width:100%;
  margin:0px auto;
  position:fixed;/*固定作用*/
  top:0px;
  left: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 */
  text-align:center;
  background-color:#ffffff;
}
#top{
  height:50px;
}