How to remove space at top and bottom of pages

I know this is probably an Elementor question but all of my pages have a small blank space at the top and bottom. I know how to do it with Siteorigin but the place I found in Elementor doesn’t seem to be the place. Where do I remove the space? Since it is a global issue with this theme and SmartSlider / Elementor (all pages are being constructed in Smart Slider 3 pro) is there a simple CSS for all pages I can add in “Customization CSS”? Thank for your help. Here is a sample page to take a look at.

It seems like you’ve asked about it previously in your other topic. Does it answer the question?