Brooklyn Theme Grid Help

[kirstymcmanus]

I need help with my Brooklyn theme - I'm just looking to adjust the grid on mobile to show 2 products in a row for my collections, and also stop the title from being displayed on mobile. https://bingedit.co.uk/collections/track eg remove 'Squid Game'

I tried to do it myself using answers from the forum but it doesn't seem to have worked - could anyone help please?