Hi, I'm back as it seems there is still some unexplained space between the bottom of the menu and top of the article.
This 1st image is from an SP PB Pro Page I created, with coloured Body, set via the Template Options > Layout > Body > Style option
https://drive.google.com/file/d/1wItN-_Pwa-7MWb3BFMwKkY9CHqk72ugz/view?usp=sharing
This 2nd image is from an Article i created using the SP PB Pro option and by adding the back-gound to the custom css you provided:
.view-article #sp-main-body { background-color: #FF0000; padding: 0px; }
https://drive.google.com/file/d/1Yy7EoZTdKb5j8_k8mTHpQcZa4zn2Q6bg/view?usp=sharing
What I'm trying to make happen is that the top of an article is touching the bottom of the menu as in the 1st image. fyi, I am using an Article as opposed to a Page because I plan to either use JFilter or something similar so I can allow visitors to filter articles like Similar Portfolio but I have custom fields I want to use on the 'landing page' so that won’t work.
Cheers