Help with responsiveness for Mac desktop

Site URL: https://salmon-kazoo-mg23.squarespace.com/

Hi there,

I´m having issues with the responsiveness of a design I have created for a client. On my laptop it looks good (although slightly crowded) but then on my client´s Mac large desktop screen there is a large  space between the scrolling Firstbase Faves section and the Wellness Club section. I´ve tried editing the css padding but this hasn´t helped, I´m not sure if the solution is to fix the css or editing the blocks?

Any help would be much appreciated!

Website: https://salmon-kazoo-mg23.squarespace.com/

Password: studio