Hey guys, I'm needing some help with html coding. I'm looking for a few things,

One is how to create a button that when you click takes you to the top of the page, I found a site said it would who this but it ended up not <_<

Also I want to learn how to create polls on a website and text fields that people can submit on it. I guess a blog? I'm not fully sure.

I was also wanting to know if it there's a site or sites that explain that and how to make it where you have to login to use them.

Help would greatly be appreciated.