Sidebar Font Questions

I have two questions relating to adjusting font in sidebars:

1. I have included a Navigation Menu widget in one of my sidebars, and I would like to be able to reduce font size (I think it’s using body font settings right now) and change the font color of the page names that are in this menu. I don’t want to make these changes globally, just to the page names as they appear in this one particular sidebar widget.

2. Similarly, how do I change the font size/color for the title of this Navigation Menu widget (it appears to be using one of the header fonts right now) within the sidebar? Again, I only want to make the change in this one location, I don’t want to change how this header font appears elsewhere on the site.

Thanks!