Changing the font on post titles.

Hello, I am using the twentyten theme and I’m having a bit of an issue.

I would like to change the color and font size of the title above each posting.

example page: https://allsportsnewsonline.com/nfl/afc/afc-north/cleveland-browns/

I am not sure if it makes a difference, but I am using a plugin to display posts from a specific category on a page using: [catlist=]

Thank You!