I'm not talking about containers that hold all the content of the site.
For example, a site normally has a header, footer, and body.
What I'm talking about are smaller containers for additional boxes that fall inside the body or even, sometimes inside a smaller area inside the body.
For example, I just got done doing a sale for some National Geographic maps sets. Each had to have a box (one on the left and one on right). Within each of those boxes, I need more areas to hold copy below the pictures. I then also need more smaller areas that would hold a price and other small descriptive copy.
So really, this isn't something that I could plan for when creating the original template.
Be advised, I've only had CSS sculptor for about two weeks and I haven't spent enough time to know if it does, in fact, create these sort of boxes