"Ray @ First Rays Orchids" writes:
changes dependent on the viewer's monitor. By setting the width to a pixel
size based upon the least common denominator, you know it will be the same
for all.

Sure, but people like me who have the Monitor From Hell(tm) and are
running at 2000x1600pixels may be a little frustrated when someone
assumes we want to use only 800x600 (or about 15% of the screen
area). The results are usually quite unreadable.

Assuming something about the web clients out there is not a good idea
today.

Geir