Can somebody break down this code for me?

Question

I got this from w3schools and I really want to understand it.
https://code.sololearn.com/Wud0Xx170Mq8/?ref=app

Answer 1

I am fairly sure that the part you don't understand are the strange characters like &alt; and &gwt;. What they represent are html "special characters" they are mostly used to write letters and symbols that aren't available on most keyboards like µ, ©, ¥. but in this case they are used so the document doesn't treat the text as a <div> and <script> tag. the way you insert these symbols is through a keycode that is between an & and ;. here is a link to the full list of html special characters and there corresponding keycodes https://dev.w3.org/html5/html-author/charref
I hope this was of use.
Mahaki.

Answer 2

mahaki Not at all what I needed help with, but thank you for trying to help!