Responsive Chat app Illustration, animated with animate.css

I thought I wasn't going to be able to do this challenge, but once I started it wasn't as hard as it looked🦸‍♂️, it was actually challenging though. I learnt how to apply animate.css to help with some of my animations, pretty cool library.

I would really appreciate comments on my coding style, how to improve this particular challenge, what I need to improve on🙏

I couldn't animate the last two chat messages with animate.css library and i really want to know what was wrong, I actually applied the animation classes correctly but it isn't working. Anything I can do to solve that?