How to add navigation arrows to mobile collection grids?

Store Design
1

I need arrows navigation in homepage collection grids just for mobile version.

My store: infinitycosmetics.it

2

Your section created Using CSS only. You need to add this using carousel js

3

Please, Can you share the code and where I have to put it?

4

You can follow this:

Shopify how to create a Featured Product Slider - YouTube