How to set the time lapse between successive animation repeats in css

Question

I just created a code using HTML , CSS and JavaScript , but I am facing difficulty regarding setting the time between animation repetitions , can you Plz tell me how to do that , here is the code that I want to correct .
https://code.sololearn.com/WckCY4090v6S/?ref=app

Answer 1

I mean how can I make the animation repeat without any interval .