Hi gav240z
I'll try and work out the clickable image. On my previous site it was clickable and I agree it is important, I'm just trying to figure out a way to make it work. Image maps won't be the best though... could work I suppose! I am thinking maybe a transparent GIF located in the DIV, but I will have to position it - I have plenty of time
I suggest if you have a genuine interest in website usability have a read of a book by Steve Krug.
Advanced Common Sense Home
Its called "Don't make me think". It will open your eyes to design faults on the web. Its a bit outdated but the concept is still the same.
What do you think of the transparent DIVs, good idea or not? - They are murder for W3C standards, the CSS file won't validate, as apparently CSS 3.x isn't the normal for them at the moment, oh well!
Transparency might look fancy, but I don't think it has a place on serious sites like for e-commerce or business. I think its more useful for Band, music, online folio's etc.. Another words sites where you want cool looking design, but not so much functionaility. I'm not too up to scratch on what browsers support it, but I'd say there is a good chance many are still using browsers that don't support this properly anyway.
It may help to look up some frameworks of CSS design layouts already out there. What i mean is a CSS wireframe to get you started. I understand you probably want to learn and that's great, but I learnt a great deal by examining other designs by experts.
Max Design - standards based web design, development and training is a good place to get started.
I would also recommend Jeffrey Zeldman's book's on Web Standards.
Eric Meyer's CSS books (although they are a bit stale to read, they are a good reference book).
There are plenty of CSS books out that show you how to achieve WEb 2.0 ish design. I found that reading some stuff on the web confused me more than neccessary.
That's mainly because things change so quickly and many of the tutorials on the web are several years old.
Another words buy the latest up to date books. Or read websites like
A List Apart: A List Apart
Hope that helps!