Mobile Layout Issue w/ Events Block

Hi everyone, I’m having some trouble formatting the mobile layout with the events block in CoBlocks. Has anyone else experienced this issue? And if so, do you have any suggestions on how to resolve it? Thanks in advance for your help!

Primarily, the left and right columns are being squeezed narrowly and the middle column is very large. Any way to redistribute column width appropriately?

I usually use CSS to reformat, but I don’t see an option for this block.

The page I need help with: [log in to see the link]