Try making one with neocities! Just throw some HTML together and you're basically a developer.

If you see something cool on a website, you can usually right click then Inspect Element to steal that code for yourself.

Depends on what you're going for. If it's just a static site, you could get by with just some HTML and CSS. The question in your post is pretty broad and will be hard to answer without further details.

A website is just a few text files that your browser interprets and renders to the screen. Of course there a billion frameworks to make it easier(or more complicated) than raw HTML and CSS, but that's the gist of it.

Do you want to go deep? If so there are some good channels I could recommend you that take you from zero knowledge to a fairly decent understanding of all the basics.

It's how I started. You'll never stop learning.

Okay so I may have accidentally fallen into an HTML rabbit hole and totally forgot to respond to y'all. Don't know if you guys will see this. With this coding I realize I'm becoming my father and it's weirdly cathartic. I feel like this may be copy-pasta at the begging of every developer's journey. May or may not be a cult, but I'm drinking the open source Kool-Aid to the bottom of the glass.