Styling in Bricks editor doesn't match

Sorry this is probably a very basic question, but I’ve neglected my site pretty badly over the past year. The weird thing is that despite making basically no changes over that time period, my site continues to change (for the worse) on the front end. When I finally went in and checked the site in the Bricks Editor, it looks as it should and I can’t find the issue. Anybody know why this might happen?

(The screenshot with the plain grey background and the hot pink headers is how the website — rachelloaf.com — is showing up in my browser vs. how it should look in the other screenshot with the tiled image background)