I recently was trying to change one of the menu links into a button and went through trying to make it look right.
At some point I modified a setting, I left for a while, and came back and the menu items now display with no spacing between whatsoever, as seen in the screenshot.
Im not sure what I changed, possibly in CSS, but it doesn’t seem to have to do with the additional button code.
First of all we would recommend you to update theme to the latest version as we can see that the version is outdated and that might have some impact on the issue you are having.
I have performed the update, downloading and installing the latest version of Jevelin! I went through appearance settings to see if there was anything new that could help.
Not sure how I even eliminated the spacing to begin with…