Creating this issue as a follow-up to the previous discussion on Telegram. At the moment one needs to scroll all the way back and forth to edit onhttps://cp-algorithms.com/preview.html, which is really inconvenient, in my opinion. It would be much better to have the editor and the preview side by side and scroll them independently.

@jakobkogler told me that it might be a problem to store the state of the preview part scrollbar and it sounds reasonable (especially if there are a lot of changes), but I'd say that even without it, we will save half the scrolling, as we wouldn't need to scroll all the way up to edit something.

While we're at it, I also wanted to ask if it might be feasible to have an option of creating pdf preview (see#320).@algmyr, is your project still active?