Mobile Product columns - how to make it more than one column? Works on desktop just messed up on Mob

[Frank_Mancuso]

Please Help! Need this done soon! Theme I am using is minimal.

https://tonyscollectibles.com/

[MS-WEB-DESIGNER]

Dear @Frank_Mancuso 

We will be happy to help you. Please contact at task4store@mswebdesigner.com