Help me to modify this code

Question

https://code.sololearn.com/WT1Hn5IRdY47/?ref=app

Answer 1

Check out mine.
The simplest though...

https://code.sololearn.com/Wux4ixFMffRc/?ref=app
Sorry I know this is not the answer to ur question, but since I am a beginner,I don't know much about HTML.So I just posted my code since ur code and mine have the same theme..^_^

Answer 2

https://code.sololearn.com/Wm91Z3e5Mz6y/?ref=app