*{margin:0;padding:0;border:0;}
#div_center { width:972px; height:32px; background-images:/images/32bn.gif; margin-left: auto;margin-right:auto;} /*?????????;background:003399; ??????,????*/ 
#nav { line-height: 30px; list-style-type: none; margin-top:2px;  }         /*????????;???5px;*/   
#nav a { display: block; width: 85px; text-align:center; font-size:12px;} /*??????????:??????,????,????*/ 
#nav a:link { color:#FFF; text-decoration:none;margin:0;}     /* ?????? */   
#nav a:visited {color:#FFF;text-decoration:none;margin:0;}    /* ?????? */ 
#nav a:hover {color:#FFCB03;text-decoration:none;}                /* 导航文字链接 */

#nav li {float: left; }                   /* 导航 */ 
#nav li a:hover{font-weight:bold;}     /* 导航滑过颜色或背景 */ 
#nav li ul {line-height: 24px; background-color:#006DBF; filter: Alpha(Opacity=100);;position:absolute; list-style-type: none;text-align:left;left: -999em; width:110px; position: absolute;;}             /*????????:??24px;????;????;????;??????,?????,??????,????#003399;???1???*/

#nav li ul a{display:block; width: 110px;text-align:left;padding-left:2px;}                 /* 下拉菜单尺寸 */
#nav li ul a:link {color:#FFFFFF; text-decoration:none;}                                  /* 下拉菜单 */ 
#nav li ul a:visited {color:#FFFFFF;text-decoration:none;}                                /* 下拉菜单 */
#nav li ul a:hover {color:#006DBF;text-decoration:none;font-weight:normal;background:#B2D7FF;}/* 下拉菜单色 */

#nav li:hover ul {left: auto;}
#nav li.sfhover ul {left: auto;}
#content {clear: left;}