#ContBox {
background-color:#ffffff;
width:950px;
height:523px;
border:0px;
text-align:left;
margin:0px auto;
background-image:url(images/referenzenback.gif);
background-position: bottom;
background-repeat: no-repeat;
position:relative;
}

#Box1, #Box2 {
position:absolute;
}
#Box1 {
width:850px;
top:40px;
left:76px; 
}
#Box2 {
width:825px;
height:440px;
top:100px;
left:76px; 
}
#refBox1, #refBox2, #refBox3, #refBox4 {
position:absolute;
height: 370px;
top:0px;
}
#refBox1 {
width: 170px;
left:0px;
}
#refBox2 {
width: 170px;
left:200px;
}
#refBox3 {
width: 250px;
left:400px;
}
#refBox4 {
width: 145px;
left:680px;
}