Reduce space/padding around my newsletter block

Site URL: https://bobcat-deer-6yf9.squarespace.com/contact-3

Hi, 

I'm very new to web design. I have a few CSS customisations on my site but I'm struggling to reduce the space/padding on my newsletter block. My URL is:

https://bobcat-deer-6yf9.squarespace.com/contact-3

I'd like the "Subscribe to my newsletter' to be closer to the input field and the subscribe button. Anyone have any idea how to help?

Thanks!

This worked! Thank you so much! @tuanphan