[erledigt] Weißer Balken und Bild unten

<div id="Mein_Bild"></div>

#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;}
 #nav_heading{display: none;}
 div.header{display: none;}
 h1#title{display: none;}
 h2#title span {display: none;}

a{
color:#4A9AF6;
text-decoration: none;
font-size:13px;}

a:hover {
color: #4A9AF6;
font-size: 13px;
text-decoration: none;}

a:link {
color: #4A9AF6;
font-size: 13px;
text-decoration: none;}

a:active {
color: #4A9AF6;
font-size: 13px;
text-decoration: none;}

a:visited {
color: #4A9AF6;
font-size: 13px;
text-decoration: none;}

body {
background-color:#;}

*{ padding: 0; margin: 0; }

#Mein_Bild {
margin: 0 auto;
width: 1000px;
height:700px;
background-image:url(http://www.uploadplanet.de/bild.php/44649,gb16CT314.gif);}

#header_container {
position: absolute;
left: 50%;
margin-left:-310px;
width:700px;
height:100px;
background-color:#343434;
background-image:url();
color:#FFFFFF;
font-size:13px;
border: 1px solid #FFFFFF;}


#content {
position: absolute;
left: 50%;
top: 150px;
margin-left:-310px;
width: 680px;
height: 380px;
padding:10px;
color: #F2F2F2;
font-size:13px;
background-color:#343434;
background-image:url();
border: 1px solid #FFFFFF;
overflow:auto;}

#nav_container{
position: absolute;
left: 50%;
top:150px;
margin-left: -490px;
width: 160px;
height:400px;
border:1px solid #FFFFFF;
overflow:auto;}

ul#nav{
width: 130px;
padding: 0px;
margin: 0px;}

li.nav_element{
list-style-type: none;
position: relative;
padding:5px;
width: 115px;}

li.nav_element a{
display: block;
width: 115px;
padding:4px;
font-weight: bold;
text-decoration: none;
text-align: left;
color:#F2F2F2;
background-color:#343434;
background-image:url(HIER BUTTON-URL_1);
border: 2px solid #000000;}

li.nav_element a:hover{
color: #000000;
background-color:#C9C9C9;
background-image:url(HIER BUTTON-URL_2);}