Idea

Borrowed Google Chrome's "no internet connection" dinosaur.

I did this a year ago, when I thought that "What if, I should make a 3d pixel art, instead of 2d".

And so, happened that the 'Codepen Challenge' for that week is about dinosaurs.

The first thing popped out from my mind is the Google Chrome's "no internet connection" dinosaur game.

I did not use any pre-processors for CSS and Javascript for animation.

But I used the CSS variables, for a little convenience. I don't know much about CSS variables that time, and I totally don't know about HTML pre-processor.

Demo

Here is the demo of the dinosaur.