Chewbacca Peardrop Sites were simpler then, not as many all-singing, all-dancing interactive things in them to go wrong. Mine were all made on an app that let you do it by typing in the text you wanted to show, where you wanted it, and adding pictures, then you could move chunks around until it looked right.
I picked up a small amount of coding because it was sometimes needed to add things I wanted, but doing a whole page with it is like writing a page of algebra. If you want to see what code looks like, find "view page source" on your browser for the page you are on.
There were a few good rules around then, though - one was that the reader should be able to get from wherever they were on the site to any part of any page they wanted with no more than three clicks of the mouse, and it should always be very clear how to return.
I have been on some very posh sites recently where you went round in circles looking for the information you wanted, or were stuck on a page that wouldn't respond to the "back" arrow, so you could only get out of it by leaving the site completely and starting from scratch (or even exiting from the browser )