News Widget

Hi could someone help me with changing the font on a particluar widget I have for latest news. You can see on the right hand side of my sites pages:

https://www.ssifm.com/facilities-management/cm-business-directory/

or

https://www.ssifm.com/facilities-management/fm_forum/

That the widget named Latest News is showing a grey font to which I need this to be white.

Any help is massively appreciated