The example earlier has been redone with a light pastel blue in place of the drab grey background. That's the easy part.
Everything I've spent the day doing turns out to work in FF3/Win and IE7/Win, slightly b0rked on Opera/Win but b0rked hideously on */Mac. So it's useless. Fortunately, it's just a stylesheet I've got to trash. And I learned a fair bit.... at least, I think I did. It remains demoralizing to have to scrap a whole bunch of design because it doesn't work as intended.
Fortunately, I've managed to consume twice my own mass in pizza. Today demanded that.