Little help: Border styling on div blocks

Hey! How are you all Webflow community?

I’m new to Webflow, so I need a little help. I’m trying to make a grid with boxes inside of it, the grid and its boxes have a border stroke, but some of these boxes -that I configured with 0 margin and padding- look a bit separated or the stroke looks thicker, I noticed then that the border’s style on each box was setting the stroke to be inside the box.

But I don’t see a way to style the stroke to be outside or on the center of the boxes’ borders, is there a way to do that?

Thank you so much for your help. Cheers