div#hoofdnavigatie {
height: 180px;
left: 0;
position: absolute;
right: 0;
top: 0;
}
div#subnavigatie {
background-color: #E0E8EB;
left: 10;
position: absolute;
width: 150px;
top: 180px;
}
div#hoofdinhoud {
left: 180px;
position: absolute;
right: 10px;
top: 180px;
}