I dont understand

Question

Must it only be colorchange cant i change it to something else

Answer 1

With enough knowledge, you can make it do whatever you want! During my time in SoloLearn, I have seen some insane animations that we're done with CSS only. Take the time to look at other codes, you'll be amazed.

Answer 2

Maybe this help: https://code.sololearn.com/WUW4kIqL2YAW/?ref=app

Answer 3

Ахахах