Can’t get to full screen

Hey, I am really not a coder, but am making wordpress websites with various drag and drop builders ( I know you guys hate this haha ), I am currently working on this site fro a friend and just can’t get it to be full width. I have tried everything when adding CSS to the page (margin, padding, width, position….), but nothing works – might be I am not applying those styles to problematic class or something else.

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This is the site and – home page is what I am currently working on. Could you please help somehow? Thanks!

• This topic was modified 6 years, 1 month ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

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