I don’t know a good way to describe this, and I can’t link my site and have it public for the time being, so I’ll just try and show you with pictures.
On the demo, everything is nice and takes up the whole width of the screen. However, on my site, it only takes a portion of it and also when scrolling down, on demo, the services has a grey background spanning the whole page, mine cuts off. Hope I’m making sense
Please do note the image currently used for header is not permanent and I'm not breaking copyright law, I placed that there just for illustration, and I don't really have an image for it yet, hence the dummy replacement.