This tutorial shows you how to add a responsive hamburger icon menu ( with 3 lines ) display for your primary navigation menu like this:
By default, only the custom menu widget added to the header right widget area in the Centric Pro could theme is responsive and not the primary nav menu located below the header.
In order to make the primary menu responsive when the screen size reaches a specific width, you’ll need to modify the code in the child theme files.
You can easily change the position of the hamburger icon using CSS.
Here’s the code you can simply add to your theme files to make your after header menu mobile responsive: