#nav {
	height: 24px;
	list-style-type: none;
	padding-left:0px;
	line-height:24px;
	overflow:hidden;
		border-bottom-width: 1px;
	border-bottom-style: solid;
	border-bottom-color: #244C6C;
} 
#nav a { 
display: block; width: 90px; text-align:center; 
} 
#nav a:link  { 
color:#EEE; text-decoration:none; 
} 
#nav a:visited  { 
color:#EEE;text-decoration:none; 
} 
#nav a:hover  { 
color:#FFF;text-decoration:none;font-weight:bold;
} 
#nav li { 
float: left; width:90px; 
} 
#nav li ul { 
line-height: 24px; 
list-style-type: none; 
text-align:left; 
left: -999px; 
width:855px; //注意,这里一定要设置宽度; 
position: absolute; 
} 
#nav li ul li{ 
float: left;width: 90px; //float就是子菜单横向的关键,可以继承父菜单而省略float 
} 
#nav li ul a{ 
display: block; width:90px;text-align:left; 
} 
#nav li ul a:link  { 
color:#F1F1F1; text-decoration:none; 
} 
#nav li ul a:visited  { 
color:#F1F1F1;text-decoration:none; 
} 
#nav li ul a:hover  { 
color:#FFF;text-decoration:none;font-weight:normal;
} 
#nav li:hover ul { 
left:10%; 
} 
#nav li.sfhover ul { 
left:10%; 
} 
#content { 
clear: left; 
}