How do i make it go back?

Question

once youve click the button and youve read the text how would you make a button in there so you could go back to the main page?
https://code.sololearn.com/WxTGg61JHnyh/?ref=app

Answer 1

You can't. After you call document.write. Your current document is wiped off.
You need to hide your buttons. Not remove them.

Answer 2

and how would one go about doing that