Change background colour in a module

Could not figure out how to assign a background colour to a single module. This page ( maremotoviaggi.com/index.php/features/sport ) uses 3 custom modules on three columns made on a custom row in Sparky's Template Style Layout builder. I would like to achive the result that each column has a different background colour. How can I get it? Thanks.

Hello,

Each of these cells have different class applied. In your example, classes are "mp_header4", "mp_header5" and "mp_header6". So, you can style them separately. In example, in CSS you can add:

Best regards,
Milos