Slide wrap navigation bar issue when published

I have a quote slider of three customer client quotes that has a nav bar underneath. I’m not sure what the issue is, but it looks like my background image is coming through on either side of the nav bar when published despite its width being at 100%.

Side note, if you could tell me why there is a thin gray line along the top of the slide wrap, that would be amazing.

Read-only: Webflow - Brave

Dev publish: