css Problem

#extraDiv1 {display: none;} #extraDiv2 {display: none;} #extraDiv3 {display: none;} #extraDiv4 {display: none;} #extraDiv5 {display: none;} #extraDiv6 {display: none;} #pre_header {display: none;} #post_header {display: none;} #pre_content {display: none;} h1#title{display: none;} h2#title span {display: none;} #sidebar_container{display:none}  a{ color:#ffffff; text-decoration: none; font-size:16px;}  a:hover { color: #ffffff; font-size: 16px; text-decoration: none;}  a:link { color: #ffffff; font-size: 16px; text-decoration: none;}  a:active { color: #ffffff; font-size: 16px; text-decoration: none;}  a:visited { color: #ffffff; font-size: 16px; text-decoration: none;}  div.header{ position: absolute; left: 50%; top: 210px; margin-left: -150px; color: #ffffff;}  body { background-color:#000000;} td[height="102"] { position:absolute; left:50%; margin-left:-384px; }   *{ padding: 0; margin: 0; }  #tm-formel1{ margin: 0 auto; width: 990px; height: 900px; background-image:url(http://img.webme.com/pic/t/tm-formel1/test.gif);}  #content { position: absolute; left: 50%; top: 410px; margin-left: -305px; width: 525px; height: 485px; padding:10px; color: #999087; font-size:0px; background-color:#Transparent; background-image:url(); border: 14px solid #Trasparent; overflow:auto;}  #nav_container{ position: absolute; left: 50%; top: 410px; margin-left: 260px; width: 220px; height: 500px; border: 0px solid #ffffff; overflow:auto;}  ul#nav{ width: 150px; padding: 0px; margin: 0px;}  li.nav_element{ list-style-type: none; position: relative; padding:0px; width: 115px;}  li.nav_element a{ display: block; width: 115px; padding:4px; font-weight: arial; text-decoration: none; text-align: left; color:#114477; background-color:#Transparent; border: 0px solid #ffffff;}  li.nav_element a:hover{ color: #ffffff;}  #counter { position: absolute; left: 50%; top: 30px; margin-left: 300px; width: 150px; height: 20px; color:#FFFFFF; font-size:13px; border: 1px solid #FFFFFF;}  #counter { position: absolute; left: 50%; top: 950px; margin-left: -305px; width: 150px; height:20px; color:#ffffff; font-size:13px; border: 0px solid #FFFFFF;}