Which way should I use for creating a page with rich HTML and CSS concepts?

Imagine I want to make a tutorial web application and you should make tons of content and tutorials for my users. In Ruby on Rails if I use CRUD system to make tutorials one by one and store in database, how can I get to rich HTML and CSS concepts while when I write description of tutorial inside a poor text_area and I can't make my page with HTML and CSS stuff to show great page. I just have very primary show page in show.html.erb and my content won't show great. For meeting my request which way do you suggest? Can I make my pages without CRUD and just playing with controllers and actions? Don't you think I will make tons of actions? Thanks