zeraliem

thanks for your answers, but I have a little problem with plugin. I set up my template as you write but my sedebar ignore sticky menu (e.g. here: https://www.orbisunum.cz/jedu-do-mnichova/ if you scroll down, sidebar superimposed the menu). Can you help me? How can I change it?

I mean main menu on header ?? If I scroll the page, I want in order that main menu (under header image) stay on top. e.g. like this: https://sktthemesdemo.net/iamonepro/ (if you scroll down, the menu stay on top page). Is it intelligible? ??