#ContBox {
background-color:#ffffff;
width:950px;
height:623px;
border:0px;
text-align:left;
margin:0px auto;
background-image:url(images/unternehmenback.gif);
background-position: top;
background-repeat: no-repeat;
position:relative;
}

#Box1, #Box2 {
width:510px;
position:absolute;
}
#Box1 {
top:40px;
left:76px; 
}
#Box2 {
top:84px;
left:655px; 
}