I have just built a simple home page. I have added elements in Site Origins Builder.
At this stage I can’t remove:
the gap between the header element and it’s horizontal line.
Gap between last element of the page and the footer
See image here (I couldn’t attach an image) - http://s883442600.websitehome.co.uk/wp-content/uploads/2021/09/Spaces-in-header-and-footer.jpg
All margins’ etc in these elements are set to zero.