Exhibit Builder layout tutorial

Would it be possible to get some more detailed instructions / best practices for building custom Exhibit Builder layouts?

I'm having a lot of trouble combining what little general PHP and CSS I actually know (and can find on the W3C site) with the specific EB functions needed to produce my desired results, but I don't want to clog up the forums with every little problem I run into.

There's a lot of documentation about configuring Omeka's overall appearance (themes), but not much about exhibit layouts specifically. http://omeka.org/codex/Creating_an_Exhibit_Layout only gets me so far before I'm pulling my hair out over why my text won't display or my thumbnails won't line up the way I want.

I think there's certainly room for some expansion of that documentation, or possibly for more "recipe"-like documentation about more specific scenarios.

Obviously, the topic of CSS and styling in general is a pretty big one, so maybe it would work better to give some more specific examples.