How do I make the text slide across the div when the div opens?

Question

I can't believe I lost my practice with css but how do you make the text slide across the div as the div is transitioning? Also, how do you make the other div stay open when the other div is transitioning?
https://code.sololearn.com/W9ZQnwZl6UJn/?ref=app

Answer 1

If you know css and Javascript, use javascript onload.

Answer 2

Check out the animation of text output using css only
https://code.sololearn.com/WcGGa76NevFQ/?ref=app