body{width:700px;margin:20px auto;}div#body2{padding:10px;}div#head{padding-top:30px;}div#head_nav{letter-spacing:1px;}div.join{cursor:pointer;}div.magin_top{margin-top:30px;}table{width:100%;}td{padding:6px;text-align:center;}tr,td{vertical-align:top;}table.model td{padding:4px;text-align:left;}ol{list-style-position:outside;margin:5px 0 10px 30px;}li{margin-bottom:10px;}.big{font-size:26px;letter-spacing:1px;font-weight:bold;}