Hi, could someone already deal with my problem?

Hello, I would like to customize the burger menu as follows:

https://ibb.co/iKTCNm

The main menu items should be in capital letters.
The submenu items in lowercase letters.
All menu items should be flush with each other.
When the mouse is over a menu item, the font should turn yellow.
The active menu item should be highlighted in yellow across the width of the menu.

Is that feasible?
Thank you in advance!