Add margins to galleries without changing grid padding

Site URL: http://www.derekmichelviolins.com

I want the 2 sections on the main page of my website to line up, is there a way I can add margins to the gallery so it isn't bleeding over and lines up with the top section without changing the padding between the images?

Add to Design > Custom CSS

[data-section-id="61f40f3721063462b2834c15"] .content-wrapper {
    padding-bottom: 5px !important;
}