How to connect to html pages in sololearn

Answer 1

Not possible....

Answer 2

you cannot link sololearn code playground page to others sololearn code playground pages (at best, you will connect the sololearn editor holding the page -- meaning you have to hit 'run' to make it displayed)

however, you could link any other page from the internet through an absolute url in href attribute of <a> tag, such as github pages (but in app' your link will be opened in your browser) ;)