There are a couple of things to do here, so we're going to lay them out in a to-do list below.
1) Get index.html properly set up as a portal. Have a cool-looking picture and a link that redirects to this page.
2) I forget what they're called, but set up the side and top boxes for later use. There's a lot of good web 1.0 sites you can use for reference here.
3) Hazy half-remembered tribute to the forum RPGs you remember from being a kid, which are basically multiplayer CYOAs. You made one themed around Redwall on Freewebs when you were like, 8, so that's what this thing is gonna be for.
3a) but, you know, why stop there?
4) Essays on fiction, divided into spoiler-free and full-spoilers sections
4a) Because good luck talking about Xenoblade without such a division
This means that what you need is a nested index. You need a blog, you want webrings and links, and you need an index of rules for Yon CYOA. Ideally get a forum too, but you can wait for that.
To learn more HTML/CSS, check out these tutorials!