Hello Chad,
Thank you so much for your answer.
I was using a plugin (side origin builder) to set my new footer and I think this is why the widgets were placed one below the other, because without it, they are aligned horizontally.
The additional CSS didn’t help with colors because I must have modified something I shouldn’t (this is my first website so everything is new for me). Anyway I created a new class for my second footer to choose the colors and now it works.
I just have a last question. I added a search form in the main menu but I can’t align it it with the rest of the menu item. This issue happens only when using firefox as you can see here, everything is perfect when I use another browser like Chrome or Safari.
Is there anything I can do to fix it ?