How to make space between button and photo bigger on mobile?

Hi I'm using Fairfield theme from Brine FamilyWhenever this part of my website is on mobile, the gap between the button "shop" and the next photo below it is too close. How do I adjust it to be bigger? Thanks in advance!

website: https://porpoise-mustard-822y.squarespace.com/ password: 12345678

website: https://porpoise-mustard-822y.squarespace.com/password: 12345678

@tuanphan any tips? :D

@shelleyjavier Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
.homepage .sqs-block-button {
   margin-bottom: 50px !important;
}
}

@tuanphan thank you! You’re the best!