/*网站主体框架样式*/
.page_l61 .main_box_style{clear:both;background:url(images/bg.jpg) repeat-x top white;overflow:hidden;}
.page_l69 .main_box_style{clear:both;background:url(images/bg.jpg) repeat-x top white;overflow:hidden;}
.main_box_style{clear:both;background:white;overflow:hidden;}
.main_box_style .main_box_inner{width:1000px;margin:0px auto;}
.main_box_style1{clear:both;margin:5px 0 0 0;paddnoverflow:hidden;}
.main_box_style1 .main_box_inner{width:1000px;margin:0px auto;}
.main_box_style1 .main_box_inner_left{float:left;width:200px;margin:0 10px 0 0;overflow:hidden;text-align:left;}
.main_box_style1 .main_box_inner_right{float:right;width:790px;margin:0 0 0 0;overflow:hidden;text-align:left;}
.main_box_style2{clear:both;margin:5px 0 0 0;overflow:hidden;overflow:hidden;background:url(images/lanmu_nav_bg.gif) repeat-y right top;}
.main_box_style2 .main_box_inner_left{float:left;width:680px;margin:0 10px 0 0;overflow:hidden;text-align:left;}
.main_box_style2 .main_box_inner_right{float:right;width:210px;margin:0 0 0 0;padding:0 0 0 0;overflow:hidden;text-align:left;border:0 solid #cccccc;border-width:1px 0 0 0;}
.main_box_style3{clear:both;margin:5px 0 0 0;overflow:hidden;background:url(images/lanmu_nav_bg.gif) repeat-y left top;}
.main_box_style3 .main_box_inner_left{float:left;width:210px;margin:0 10px 0 0;overflow:hidden;text-align:left;border:0 solid #cccccc;border-width:1px 0 0 0;}
.main_box_style3 .main_box_inner_middle{float:left;width:460px;margin:0 0 0 0;overflow:hidden;text-align:left;}
.main_box_style3 .main_box_inner_right{float:right;width:210px;margin:0 0 0 10px;overflow:hidden;text-align:left;}
以上改了不起作用呢？
