Looking to design a custom menu

Hello All;

Please take a look at

https://va.in-design.com

Do you see that green menu on top. I am trying to figure a way to create a wordpress theme and add that menu to the top.

Tonight, I am going to try and add it to the child theme’s pages. Hard coded; however, is there a better way to do that? Other than just hard code it into the theme’s code?

I am new to wordpress; but have extensive knowledge and lots of coding skills. So, I am not faint of heart.

It just seems to me that there should be an easy way to add different menu styles. Perhaps by adding CSS styles and the javascripts / code to a theme in a more clean way.

Thanks,
Tamer