CCS的问题 [复制链接]

http://www.hslm.com/index.aspx?menuid=6&language=cn
他左边导航模块：

我的就没有那个分隔背景 我附上了我的CSS 请高人指教 看看我哪里弄错了


CCS:

/*栏目布局样式*/
.lanmu_box{clear:both;margin:10px 0 0 0;overflow:hidden;}
.lanmu_box_style1_left{float:left;width:220px;margin:0 10px 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style1_right{float:right;width:770px;margin:0 0 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style2_left{float:left;width:770px;margin:0 10px 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style2_right{float:right;width:220px;margin:0 0 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style3_left{float:left;width:220px;margin:0 10px 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style3_middle{float:left;width:540px;margin:0 0 0 0;overflow:hidden;text-align:left;}
.lanmu_box_style3_right{float:right;width:220px;margin:0 0 0 10px;overflow:hidden;text-align:left;}

/*栏目导航样式*/
.lanmu_menu_box{clear:both;width:100%;margin:0 0 10px 0;overflow:hidden;}
.lanmu_menu_sign{font:14px/normal "Microsoft YaHei", "Microsoft JhengHei", "Arial";float:left;text-align:left;padding:5px 0 0 22px;}
.menu_more{float:right;font-weight:normal;paddingpx 10px 0 10px;margin:0 0 0 0;background:url(public/more_icon.gif) no-repeat 0 13px;}
.lanmu_menu_title{font-weight:bold;border:0 solid #cccccc;border-width:0 0 0px 0;height:28px;text-align:left;overflow:hidden;background:url(images/nav_title_sign.gif) no-repeat 0px 0px;}
.lanmu_menu_header{text-align:left;padding:0 0 0 0;margin:0 0 0 0}
.lanmu_menu_content{margin:0 0 0 0;padding:5px 5px 5px 5px;border:0px solid #e1e1e1;text-align:left;background:url(images/lanmu_nav_menu.gif);border-width:1px 0 1px 0;}
.lanmu_menu_menu{margin:0 0 0 0;padding:5px 5px 5px 0;border:0px solid #E1E1e1;text-align:left;background:url(images/lanmu_nav_menu.gif);border-width:0 0 1px 0;}
.lanmu_menu_menu_list{height:29px;text-align:left;border:0 solid #cccccc;padding:5px 5px 0 45px;margin:2px 0 5px 0;overflow:hidden;background:url(images/bg_left.gif) no-repeat 0 0;}
.lanmu_menu_submenu_list{line-height:29px;text-align:left;padding:0 5px 0 50px;background:url(images/lanmu_nav_submenu_bg.gif)  no-repeat 32px 3px;}
a.lanmu_menu_menu_href{line-height:20px;line-width:220px;text-align:left;}
a.lanmu_menu_submenu_href{color888888;line-height:20px;text-align:left;}
.lanmu_menu_article{margin:0 0 0 0;padding:5px 5px 5px 5px;border:0px solid #cccccc;text-align:left;overflow:hidden;}
.lanmu_menu_article_list_1{text-align:left;border:0 dotted #cccccc;border-width:0 0 0 0;padding:5px 0 0 12px;background:url(images/article_arrow.gif)  no-repeat 5px 14px;}
.lanmu_menu_article_list_2{text-align:center;border:0 solid #cccccc;margin:5px 0 5px 0;}
.lanmu_menu_article_2_image{margin:0 5px 5px 0;border:1px solid #dddddd;}
a.lanmu_menu_article_href{text-align:left;line-height:20px;}

/*栏目内容样式*/
.uc_lanmu_box{text-align:left;padding:0 0 0 0;border:0 solid #cccccc;}
.uc_lanmu_site{clear:both;border:1px solid #cccccc;border-width:0 0 0px 0;text-align:left;height:28px;line-height:28px;}
.uc_lanmu_site_1{float:left;font-weight:bold;padding:6px 0 0 5px;display:none;}
.uc_lanmu_site_2{padding:0px 5px 0 20px;border:0 solid #cccccc;border-width:0 0 0px 0;height:28px;text-align:left;overflow:hidden;background:url(images/site_icon.gif) no-repeat 0px 0px;}
.uc_lanmu_content{padding:5px 5px 5px 5px;border:0 solid #000000;text-align:left;line-height:22px;border:0px solid #E1E1e1;background:url(images/uc_lanmu_content.gif);border-width:0 0 1px 0;}
.uc_lanmu_page{clear:both;text-align:center;padding:1px 5px 0px 5px;background-colorffffff;height:25px;margin:15px 0 10px 0;}