Squarespace Portfolio CSS Tweaking

I'm looking for a skilled CSS developer who can help me tweak the padding and margins of a specific section on a portfolio page on my website. The section I need help with is the Projects list - I am looking to reduce the top and bottom padding margins

Ideal Skills:
- Proficiency in Squarespace
- Extensive experience in CSS
- Strong attention to detail
- Ability to execute on design specifics