Design zentrieren klappt nicht

h1#title{display: none;}
h2#title span {display: none;} div.header{display: none;}
li.nav_element{color:#000000;list-style-type: none;}
#Header_oben { height: 200px; width: 850px; background: ; background-image:url(http://img.webme.com/pic/v/vielviel/header_orange.jpg);color: #000000; border: 0px solid #ffffff; margin: 0px 0px 0px 0px; padding: 0px; float: left; position:absolute;left:0px;top:5px;}
body {background-image:url(http://www.bilder-space.de/upload/27.11Y6wS5ylupBfTpcu.jpg); position:absolute;left:1px; background-color: #414141; background-repeat: repeat-y;}
a{color:#ffffff; font-size: 15px; text-decoration: none;}
a:hover {color: #ffffff; font-size: 15px; text-decoration: none;}
a:link {color: #ffffff; font-size: 15px; text-decoration: none;}
a:active {color: #ffffff; font-size: 15px; text-decoration: none;}
a:visited {color: #ffffff; font-size: 15px; text-decoration: none;}
li.nav_element a{ color:#ffffff; display: block; margin: 5px; padding-left: 0px text-decoration: none; width: 80px; height: 25px; background-image:url(); background-color:}
li.nav_element a:hover{ color:#ffffff; display: block; margin: 0px; padding-left: 0px text-decoration: none; width: 80px; height: 25px; background-image:url(hover); background-color:} * { padding: 0; margin: 0; }
#Design { margin: 0 auto; width: 852px; height:900px; }
#nav_container {display:none;}
#content { height: 570px; width:840px; background:; background-color: #xxxxxx; color: #ffffff; border: 0px solid #000000; margin: 0px 0px 0px 0px; padding: 0px; display: inline; float: left; overflow:auto; position:absolute;left:5px;top:320px;}
#sidebar_container { height: 18px; width: 450px; background: ; background-color: #XXXXXX; color:#ffffff ; border: 0px solid #000000; margin: 0px 0px 0px 0px; padding: 0px; float: left; position:absolute;left:400px;top:8px;}
#counter{ height: 20px; width: 830px;background: ; background-color: #XXXXXX; color: #ffffff ; border: 0px solid #000000; margin: 0px 0px 0px 0px; pagging: 0px; float: left; position: absolute;left:10px; top:905px;}