I'm not going to put that site online. I use page builder 3.8 for my online site. I just wanted to try version 4 and see the possibilities. But there is a bug(s) in version 4. When you give a row a background color, it also works in the frontend, but when you give that row a title and save it, the css for the background disappears and becomes the background white again. The same thing happens with a background image. I've tried it on another offline site (xampp) and i have the same result. Try it out for yourself.
Or it's a problem with xampp