Eliminate Spacing between Page Builder Rows

Hello,

I am trying to eliminate any space between particular pagebuilder rows (the hero image and the optinform) on this page:

http://www.brooklyntropicali.com/?page_id=3033&preview=true

I would like the hero image and the next row (the optinform) to have no space in between. I’ve searched other support threads and tried most of the CSS suggestions I found, and nothing has helped. I’ve also adjusted the padding and margins directly in the row layout, without seeing any difference.

Can you please advise how I can eliminate this spacing?

Thank you