Please forgive the ugly nature of this animation. I am not a designer so I decided not to spend time making it look good. I have a lot of experience matching the designs that other people come up with, but designing myself is not my strong-suit.
I made a couple of my own CSS animations, but many of them came from animate.css, though I did change the ‘tada’ animation so that it utilizes Sass preprocessing to handle vendor prefixes a little better. I didn’t bother making this change to all the animations, since I already learned the things I was shooting for.
Frustratingly, Sass does not support interpolation on @import directives. Otherwise I would have set it up to iterate through a list of only the animations we wanted so we could set up all the vendor prefixes for them in one loop. We could have a big Sass file with tons of animations but the final CSS file would only contain the ones we actually want. Instead, I will need to use a preprocessor mixin like Bourbon or Compass if I ever use this in the real world.