How to apply different CSS styles to 2 elements with the same class name?

Question

I created a website that has different navigation menus. In 2 menus, I use the same HTML class element.

I have a .css file that styles that class element in 1 menu.

Answer 1

I know this is a poor way of doing it, the suggestions from previous answers are helpful, but try this maybe:

First menu:

 Some code 

Second menu:

 Some other code