simple template for project documentation using html/css

[netshet]

That's not much to go on, are these long documents? If we're talking lots of pages per document you might be better off converting them to PDF. While HTML and CSS would be able to have the document broken down, PDF files are pretty great for navigation, accessibility and allowing people to print and or store them offline for future reading. It's the generally accepted method on the web of showcasing long documents that may require redistribution.