I see what you mean. Strange thing is… it really (the 3px code) was and is in the custom css, but the inspector still says 1px and the browser sees 1px as well.
I think the same is happening with this issue: https://support.simpleprothemes.com/forums/topic/flex-theme-overriding-su-code/
So let’s leave it here.. apparently the simple custom css plugin is accepting and showing the custom code for the nav bar etc, but the su-note code and the footer widgets code doesn’t get accepted, although entered correctly.
That’s strange but unfortunately seems to be true. Let us drop the issue, I can live with it.
Thanks for your time again and kind regards,