This is only as a sample. You may have to grab the previous div and take care of the screen width. I have no idea what will happen on mobile devices, and it will require adding more css.
Pay attention to: display: flex;. Perhaps there are difficulties in this.
It’s the same as above, it gets overwritten from theme_11.scss.
It’s really annoying because it worked once but now not anymore.
Edit:
It’s one of the theme components, I have to figure which one.
Got it, it’s the offical “Easy responsive footer”. After removing it the site changed to 90% width.
Maybe @Johani can have a look at it because I would like to have the footer again.
Edit2:
And “Versatile Banner” is “corrupting” the width changes. Maybe @tshenry can have a look, too?