I want larger images loading below a thumbnail or plus sign [+], instead of using pop-windows, frames, or taking the user off the page (and having to hit the back button). I don't want to use Flash and I don't want image swapping by pre-loaded larger images (file sizes are too large). The user must be able to save the loaded images.
I doubt CSS alone will be able to help you with controlling what happens when you click on anything, that's the realm of scripting. CSS has some (sometimes even elaborate) ability with hover, but afaik nothing with click.
[edited by: korkus2000 at 7:38 pm (utc) on Jan. 30, 2009]