please be aware that teaching you everything would be a long chore. you have a browser for a reason! plus, anything else i don't teach you is probably on here. this is a very useful and in-depth page. you can learn about custom backgrounds and stuff. this page will teach you small things like buttons that take you places and what-not.
surround whatever you want in the "center" variable. easy huh??? you can also put "align="center" before ending a paragraph variable. it'd look like this:
i usually just put the first "center" in my header line before h1. then i put the end of it at the bottom of the page right above "/body" to make sure everything in the page is centered.
i use buttons for navigation. just go back and copy the code for my website button and paste it right above your header. then change the image link to "/images/yourbutton.png" or whatever image you use. you can use my button as a template for your own. when you have that done, upload the image to an "images" folder on your neocities dashboard. then change the link of your button to go to a new page of yours.
you should most definitely not use marquee for scrolling text but i have no idea how CSS text scrolling works so this is just a backup if you can't figure that out:
you can like add scroll delay and stuff but you gotta look that up yourself lol
i am a huge, huge advocator of personal websites. it's really fun to learn and extremely convenient to have.
this may seem complicated to learn but it really isn't. it is extremely easy to get the hang of. and it's really really worth it.