Shopify Collection page Grid 1 product in first column and 2 product in 2nd column

[Dunus]

I want to make collection page like show 1 product then 2product and can change the layout grid according to my need. 

check this website they already done this. https://outfitters.com.pk/collections/men-new-arrivals-view-all

i am using theme kalles. 

[Dunus]

Can you share a link of website and if its already done on your website can you please share the code with me.