locking duplicate(answering in the other thread)

I posted numerous questions in one post but haven't yet received an answer. Maybe I should break them down into a few separate posts. Hope you can help!

(1) You know the field in the demo with the site's title in it in gothic font? I'd like to use it, too (with different font). I was told that the solution is in the documentation but I couldn't find it. I've seen others ask this question but haven't seen an answer.

(2) I was told that the Index tab uses tags from posts to build the index. I have no posts or blog. I'm using only static pages and I don't see a place to assign a tag to a static page (unless I'm just missing it). Can I still construct an Index?

(3) Can I enlarge the font for the text globally (at least on each of my pages), and also can I use an even slightly bigger font for the headings on each of the pages (e.g., where it says "About the Author" on that page in the demo? In other words, when a new page opens, and the page layout appears below, I'd like the font on the page to be a bit larger than the default size, and the font of the heading above that to be even a little larger so that it stands out a bit. I saw some post about enlarging the font for posts but it didn't work for me for my pages. Again, I'm using pages and not blog posts.

Thank you!