I used to know my CSS better but I am a little rusty. Can you point me to a good refresher so I can learn how to modify the CSS. I can't remember what the menu ID, header class, menu class etc all mean. I want to be able to create my own classes to change things like h1 tag sizes or colors on just one page or add special formatting for h5 and h6. In the template styles for example, I can pick the color for h tags but not the font size - only the article font size.

I noticed that in the articles themselves there is no section to make changes. Just menus and modules. So if I wanted all h1 headers to be 16px font what's the best way to make that change?

I just want to understand a little bit better how those sections work and I couldn't find anything specific on it. Thank you so much for your help - I've been using your templates for years and I love them.