Masonry grid - edit two and one columns

Hi guys!
I have some problem with my masonry grid, I used this guid to set my style:

My problem is that it change to one column way to early, I would like it to change to one column in the phone. I tried to add an a custom attributes , but it seems like it doesn’t work. Can someone help me with this? (You can only see the changes on the published site)

Here’s my link
https://preview.webflow.com/preview/soul-temporarily-600f88d65d4305ff1e3102?utm_medium=preview_link&utm_source=designer&utm_content=soul-temporarily-600f88d65d4305ff1e3102&preview=e4662d6ecdb190e858c0c2103b825485&pageId=639ad87f49c3ffcc3042f01e&workflow=preview

Best,
Sandra