How can i change outbrain's widget style?

Hi, i want to change the style of my outbrain widget's title, as it doesn't inherit the properties i've set for all the other widgets in my blog. You can see it at the bottom (i don't want to show it higher as it isn't well presented):

http://www.nenesyburocracia.com

Can you tell me the css class i have to modify. By the way, i use blogger.

Thanks and regards,
Juan