html,body,iframe
body

{
scrollbar-face-color            : #ffffcc; 
scrollbar-shadow-color        	: #000000; 
scrollbar-highlight-color      	: #ffffcc; 
scrollbar-3dlight-color         : #ffffcc;
scrollbar-darkshadow-color 		: #ffffcc;
scrollbar-track-color           : #ffffcc; 
scrollbar-arrow-color			: #000000; 
} 


#werklaag {
position:absolute;
top:50%;
left:50%;
Margin-left:-380px;
margin-top:-225px;
width:800px;
height:515px;
}