CSS animation

Question

Please help me improve my skills by send css animations like this. Thanks.
https://code.sololearn.com/Wc5qV11WEKfJ/?ref=app

Answer 1

https://code.sololearn.com/WKmH8CbQhMx9/?ref=app

Answer 2

You can try discovering Pens on Codepen. You always see the code to these pens so you can see what happens and why and how to make those animations happen.