Open
Description
For information-only lessons without an editor, the text occupies the full width, which is too much.
Content-oriented websites, such as https://medium.com/ and others limit text width, they make it a narrow column with margins.
For example medium.com - it's 680px:

I'd like to do the same.
I can add width: 680; margin:auto
using dev tools to get it, like this:
What is the correct way to do this? Without a need to patch tutorialkit?
I guess, this isn't just about me. Wide texts are usually fit into columns on most sites, hopefully there's a way =).
P.P.S. With an editor, another layout should apply, probably with the editor taking extra right space and no margin. This request is only about the "editor: false" layout.