Reduce space between header and content/title of site

Hi,

I am looking to reduce the spacing between the header of my webpage and the "Our Approach" title.

I've tried a few codes and they haven't worked.

I am currently on Version 7.0– Brine family (Brine template).

site url: https://www.kudavana.org/

Please let me know if it could be solved. Thanks!

Add to Design > Custom CSS

/* Our Approach */
body#collection-648fdbe1f52cf4414ef80821 section.Main-content {
    padding-top: 0px;
}