body 
.aa{
	background:url(images/company4.gif);
	padding:2px 8px 10px 8px;
	color:#FFFFFF;
	font-weight:210;
	font-size:10px;
	margin-top:0px;
	text-align:left;
}
#navigation{
	width:210px;
	padding:0px;
	margin:0px;
}
#navigation ul{list-style:none;margin:0px;padding:0px;}
#b{ float:left;}
#c{ padding:8px 2px 5px 0px;}
#navigation li{ padding-top:1px;}
#navigation li a{display:block;/* 区块显示 */padding:0px 10px 8px 4px;text-decoration:none;background:url(images/company3.gif);*height:30px;}
#navigation li a:link, #navigation li a:visited{
	color:#000000;
	text-align: left;
	font-weight:normal;
	font-size:6px;
}
#navigation li a:hover{background:url(images/company4.gif); color:#FFFFFF;/* 鼠标经过时 */}/*左侧菜单条 */