How can I annimate 2D or 3D annimation ?

Question

I want to learn 2D and 3D annimation. How to apply this annimation?how I can use it?

Answer 1

How did you make this?

https://code.sololearn.com/W7Wv4KcNnQ1U/#html

Answer 2

This is my new trial .It is done after observing many codes on sololearn. You can try.