Code editor not visible on some pages for small viewports

[thorhj]

The code editor is completely blocked by the output pane on some pages, completely hiding the most important part of the lesson. This happens on pages with a long text and multiple output lines, like /basics/floats/.

[thorhj]

I have attempted to fix this in #100 (💯), but be aware that my CSS skills are severely lacking 😆

[lpil]

Thanks again, and thank you for the screen recordings. Super helpful