导航菜单问题 [复制链接]

/**********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;background:url(images/wanzheng.jpg) repeat 0 0;border:0 solid #dddddd;padding-left:30px;overflow:hidden;}
.menu_style_1{float:left;text-align:center;padding:5px 20px 0 20px;background:url(images/menu_style_1.gif) no-repeat right center;}
.menu_style_1_last{float:left;text-align:center;padding:5px 0 0 20px;}
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 {colorffffff;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{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0 0;}
a.menu_current_1_last{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0 0;}
a.menu_current_1_last:hover{colorffffff;text-decoration:none;font-weight:bold;paddingpx 0 0 0;}
我想修改下里面的样式，但是该怎么调用我弄的新样式啊？
从哪里调用，谢谢，xiyou 来了吗