Uni-Form is an attempt to standardize form markup (xhtml) and css, "modularize" it, so even people with only basic knowledge of these technologies can get nice looking, well structured, highly customizable, semantic, accessible and usable forms.

A nice list of column frameworks for front end developers and designers. Makes figuring out your column stucture a no-brainer.

252 allowed entities in HTML 4 and XHTML 1.0.