* {margin:0;padding:0;} 

#adsens{width:100%; text-align:center;}
#centralni{width:900px;margin-left:auto;margin-right:auto;background:#ffffff;}
#tekst{width:530px;float:left; padding:15px;background:#ffffff;}
#desni{width:340px;float:left;}
#donji{clear:both;width:100%; text-align:center;}