changing css style

Hi, I need to change text size and font type of menu items and submenu items - and I have a problem to find the right css style.

also I need to divide rows in submenu with borders, see attachment.

Can you advise me how to do it?

PS: Is there any chance to divide parent menu items like you see in the pic? It would be nice to have the logo picture in the center of menu line.

Thank you.

Hi Ilumize
Thanks for contacting us and choosing our product!
You can send me your site, I want to know your site has what ?. because I could not understand the picture you sent, I think this problem is quite difficult, I will try.

Hi, my site is demo2.ilumize.sk, based on joomla 3.2.7
The picture I sent is just an example of what I want - different type of text size and font + borders between rows in submenu.

Thanks

Hi
You can see an example in our document. it can help you split guide menu. To explain this in detail for you to understand very difficult, please take the time to read the document.
If you run into problems where I will help you (Or can help you divide always )
docs.joomlaux.com/extensions/jux_megamenu/
Note: To get as images you send, you may need to add custom css. Thanks