MASONRY galley reduced size when in color section

Hy Guys, how are you?

i tried different solutions to adjust it, such as change lot of settings in both, color section and masonry gallery, but nothing works.

When i leave masonry alone in the page it’s full size. and that’s ok.

but when i put it in a color section is reduced. i put it because i fixed a color section on the top of masonry with a subscribe section and the background image was covering into all the rest of the page, till the footer.

with a color section on masonry it’s on his place but masonry images are reduced and not full screen.

I hope you understand my problem, thanks a lot for your help !

Have a nice day

Mario