Sugar and Spice Theme – Updating widget fonts

I am using the Sugar and Spice Pro theme, and I would like to adjust the fonts used for my widget titles. Currently, the titles show up in two different fonts for any titles that are more than one or two words. I would like the entire title to be in the same font, but I can only seem to adjust one of the fonts in the CSS editor. Is there a way to adjust the fonts to match?
inouryellowhouse.com is my site