What's problem with my code?

Question

Simple css code
https://code.sololearn.com/W3e86308z901/?ref=app

Answer 1

https://code.sololearn.com/WN1Rz3DAap4Q/?ref=app

Answer 2

Plzz explain in detail... What do u want to do exactly

Answer 3

Animate... Means u want to move it...

Answer 4

I used key frames to animate the ball ...but it's not working

Answer 5

Yes I want to move it left first then add another animation to move it bottom.. unfortunately I can't find whats the problem