height and font of top menu bar

Hello

I have your plugin installed and most of it works, just the height and the font is not showing change in the front end, It is giving me only small font/menu size. I want to at least double the height and font of the top menu.

I have tried to make it bigger in the default template, and new one, but no difference.
I disabled all plugins and tried if other plugins are the cause. But no change

Thanks for your advice and help. Here is my site, this is live with the plugin activated and small height menu
https://www.pilgrim-info.com/

Thanks!
Darko