3 Column List Section in Mobile (Ver 7.1)

Hi everyone,

I have an unpublished website where I'm displaying categorized baked goods via list section in version 7.1. 

On desktop, it looks fine. There'll be 8-9 or so clickable image buttons (breads, cakes, cookies, etc) that direct the user to individual pages to see larger image galleries and place orders. On mobile, it's one loooong scroll for these list sections. I don't want to create a carousel because it will only display one list section at a time, and I feel like it will take customers a while to scroll through all the product I have to offer. 

Basically, I want a clear 3x3 column/row view of these 1:1 buttons so it's easy for the customer to see all products to consider ordering. 

How can I make three small list section buttons in a 3 column view on mobile? There are 9 list sections total, so ideally I'd have a 3x3 buttons on mobile view that will be easy for customers to click instead of needless scrolling. I am also OK with 4 columns as long as it isn't too small to see, similar to the desktop layout. 

CSS is super new to me so I'm sure this has been asked countless times.

I can offer any info I have, please go easy on me haha. 

Thanks!

Can you share link to page where you use list section? We can check easier