#leftmn{float:left;width:150px}#rightmn{float:right;margin-top:10px;width:870px}#mnbar{padding-left:5px}#mnbar ul{list-style:none outside none}#submnbar{display:block;padding:5px}#submnbar li{line-height:30px;border-bottom:1px solid gray}#submnbar li a{padding:5px;color:#fa740c}#submnbar li a:link{outline:medium none}#submnbar li a:hover{text-decoration:underline;color:navy}.main_hd{}#mdemo .text_p{font-size:20px}#mdemo{padding-bottom:150px}.thucdong{text-indent:50px}