请高手帮忙给看看这个下拉菜单怎么修改？ [复制链接]

我做的这个第一个下拉菜单遮到栏目了，请高手指教代码怎么修改，谢谢。这是我的的代码
/*menu样式*/
.menu_box{clear:both;width:100%;}
                  /**********LOGO在上方样式***********/
.menu_box_style1_1{clear:both;border:0 solid #cccccc;}
.menu_box_style1_1_1{float:left;}
.menu_box_style1_1_2{float:right;padding:0 0 0 0;}
.menu_box_style1_2{clear:both;text-align:left;height:30px;font-size:12px
Helvetica,bold;background:url(images/menu_bg_1.gif) repeat 0 0;border:0 solid
#dddddd;padding-left:30px;}
.menu_style_1_first{float:left;text-align:center;padding:6px 10px 0 10px;}
.menu_style_1{float:left;text-align:center;padding:6px 10px 0 10px;}
a.menu_1nk{colorffffff;text-decoration: none;font-weight:normal;paddingpx 0 0 0}
a.menu_1:visited {colorffffff;text-decoration:none;font-weight:normal;paddingpx 0 0 0}
a.menu_1:hover {colorcc0000;text-decoration:none;font-weight:norma;paddingpx 0 0 0;text
-decoration:underline;}
a.menu_current_1{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0 0;}
a.menu_current_1:hover{width0px;colorcc0000;text-decoration:none;font-
weight:bold;paddingpx 0 0 0;}
                  /**********LOGO在左侧样式***********/
.menu_box_style2_1{border:0 solid #cccccc;text-align:right;padding:5px 2px 5px 0}
.menu_box_style2_2{clear:both;height0px;}
.menu_box_style2_2_1{float:left;width:350px;height0px;text-align:left;overflow:hidden;}
.menu_box_style2_2_2{float:right;width:610px;height:30px;margin:40px 0 0 0;text-
align:right;background:url(images/menu_bg_1.gif) repeat 0 0;}
.menu_style_2_first{float:left;height:25px;text-align:center;padding:6px 0 0 20px;}
.menu_style_2{float:left;height:25px;text-align:center;padding:6px 20px 0
20px;background:url(images/menu_style_1.gif) no-repeat left center;}
a.menu_2nk{colorffffff;text-decoration: none;font-weight:normal;paddingpx 0 0 0}
a.menu_2:visited {colorffffff;text-decoration:none;font-weight:normal;paddingpx 0 0 0}
a.menu_2:hover {colorffffff;text-decoration:none;font-weight:normal;paddingpx 0 0
0;text-decoration:underline;}
a.menu_current_2{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0 0;}
a.menu_current_2:hover{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0
0;}
/*banner样式*/
.banner_box{clear:both;padding:0 0 0 0;margin:2px 0 0 0;}
.banner_small_box{clear:both;padding: 0 0 0 0;margin:0 0 5px 0;}