Why doesn't the "Bottom" module extend all the way across the page?
I think I understand the issue. 😉
It is something I have to tweak every site since 19 I think (most WP template).
It should be possible to set body for device full width (so you can have header and bottom full width) and it should be possible to apply the fixed width to the middle row. (or set left and right margin for better responsive ?)