I just made a website with a default width of 1200px.
Everything looked fine, but I inspected the layout with Chrome dev tool I noticed the footer was a bit off.
To be exact the div.inside-footer-widgets margin was set to these values: 0 0 0 -40
I can’t find the the -40 value in the customization panel.
I think I could add a custom css property to correct it, but I decided to ask you why it may be set like this.
Here are two screen shots.
Everything is set to 1200px width, including the header, copyright bar, etc.
https://www.salgotv.net/apps/gp/1.jpg
Only the footer appears in 1240px, here are the margin settings:
https://www.salgotv.net/apps/gp/2.jpg