Gap between menu and main banner

I decided to move off Revolution Slider because of all the issues with it and am using Master Slider instead. However, this doesn’t show up in “Plugin Additions” in the Avia Layout Builder, so I have to enter the code into a Text Block content element. This has now created a gap between the menu and the main banner on my home page, though. I’m not finding any padding settings anywhere to fix this — and the same issue happens even if I try to just do an image at the top, so I’m thinking this isn’t a setting on the slider, but an issue with the theme/editor. Any help would be appreciated. Thank you.