Page width too large on some pages

I made a multishop child theme and now the margins of some of my pages are messed up. Not all of them, but some, like “search vendor” and “about” pages.

I’ve tried some codes in the additional css customization but they haven’t changed anything.

• This topic was modified 5 years, 5 months ago by Steven Stern (sterndata).

The page I need help with: [log in to see the link]