This is a simple webpage: I'm trying to get it to look like the quick and dirty powerpoints that I've used elsewhere in class.

The text that makes up a web page is only a small part of it: most of the data in a webpage is concerned with how the elements are arranged, the colors, meta-information, etc.

The good news is that you can see how someone else has set up their webpages:
Right click on your webpage, and hit "View Source".
(If you don't have the "View Source" option, stop using Microsoft Edge).