#logo { margin-right: auto; margin-left: auto; }
#navi { background-color: #5a7925; width: 760px; height: 50px; vertical-align: middle; position: relative; margin-right: auto; margin-left: auto; z-index: 3;}
#inhalt { background-color: #fff0a9; text-align: center; position: absolute; top: 145px; left: 50%; bottom: 110px; width: 760px; overflow: auto; margin-left: -380px; z-index: 2;}
#sitemap { background-color: #5a7925; position: absolute; left: 50%; bottom: 60px; width: 760px; height: 50px; margin-left: -380px; }
#impressum { background-color: #fff0a9; text-align: center; position: absolute; left: 50%; bottom: 0; height: 60px; width: 760px; margin-left: -380px; }