#bg_wrapper{
text-align:left;
margin: 0 auto;
width:1200px;
background-color:black;
background-image:url('images/projekte/hintergrund.jpg');
background-repeat: no-repeat ;
height:100%;
}
#container, #content, #footer, #header{
background-color:transparent;
}
 .go-next a{background-image:url("../images/slider-right.png");}