If you have ever faced a challenge to create a page containing a complex layout with lots of elements. Say, a complex form.

Then you know how difficult it can be to get is pixel perfect. My method is adding a div with a grid image in it. (a 10 x 10 pixels image with a point on one corner.) here is the code needed… (for moz/firefox, with ie hacks added.) div.grid { background: url(opmaak/afb/grid.gif) 0 0; position: absolute; z-index: 100; top: 145px; bottom: 40px; left: 183px; right: 20px; _width: 800px; _height: 600px; opacity: 0.2; _filter:alpha(opacity=20); }