Open up your notepad and put these tags in surrounded by < and >
basic html:
html
title
/title
header
/header
body
p
ENTER TEXT HERE.
/p
/body
/html
now save this as NAME.html in a new directory called "public_html" and open it up with your browser. Congratulations, you have created a webpage!!!
It is basically learning what tags you can use to do what you want to do. Now, all you have to do is get some webhosting and you can use that page and make it visible to others. You can use CSS to further hone in the style and layout of your HTML page, but you want to learn HTML and XML (non-descript markup language) first before you get into the more detail oriented CSS, which takes a bit of programming knowledge.