Margin issues across desktop and mobile

Site URL: http://www.domrugman.co.uk

Hi, I recently requested some help with my margins on mobile. Since applying the code from the response, my desktop margins seem to have been thrown out of sync from homepage to work page. And the mobile margins still don't line up.

I'm hoping to achieve a really slimline margin on all pages, at all sizes, that feels consistent from desktop to mobile. Logo, copy and images to all perfectly align that margin.

domrugman.co.uk - pass: dom123

Any help would be greatly appreciated.

Thanks,Dom