Text box background or colour changed


I’m building a site for someone … and i’d like to know if I can somehow change the background (image or colour) on an text box area. I don’t like that white. The text box area is set to Dynamic, I want to change the text content from some buttons, make some links, something like that. If that is not possible, please advise me on other options. I would have used some drop down menu, but there are many buttons, and i think it would be easyer with the text box or something similar.

Thanks in advance!

My methods of questioning may be rough, I’m still a newbie :slight_smile: