*{margin:0;padding:0;border:0;}
body 
{
	font-family: arial, 宋体, serif;
    font-size:12px;
}

#nav {/*大背景*/
  line-height: 24px;  list-style-type: none; background:#666;
}

#nav a { /*一级标题链接样式*/
 display: block; width: 80px; text-align:center;
}

#nav a:link  {
 color:#3979D6; text-decoration:none;
}
#nav a:visited  {
 color:#3979D6;text-decoration:none;
}
#nav a:hover  {
 color:#FFF;text-decoration:none;font-weight:bold;
}

#nav li { /*一级标题背景*/
 float: left; width: 80px; background:#FFF;
}
#nav li a:hover{
 background:#2192DE;
}
#nav li ul {
 line-height: 27px;  list-style-type: none;text-align:left;
  display:none;  width: 100px; position: absolute; 
}
#nav li ul li{
 float: left; width: 100px;
 background: #F6F6F6; 
}

#nav li ul a{
 display: block; width: 100px;width: 75px;text-align:left;padding-left:24px;
}

#nav li ul a:link  {
 color:#188ECE; text-decoration:none;
}
#nav li ul a:visited  {
 color:#188ECE;text-decoration:none;
}
#nav li ul a:hover  {
 color:#F3F3F3;text-decoration:none;font-weight:normal;
 background:#C00;
}

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