How to decrease individual column width of multicolumn on mobile version only (sense theme)

[technoob_319]

Hi guys,

I'm trying to adjust the individual column width of my multicolumn in my store but on mobile version only, and if possible I also want to remove the swipe info at the bottom. (i.e. the <1/5> )

https://bloomingmumma.com/products/postpartum-belly-binder

 

Thank you in advance for your help!!