Sidebar font size reduction

Hi, I have Catch Responsive Pro and am trying to reduce the font size of the sidebar text and headers. The website is http://www.owensheers.co.uk/. I tried this: /* Sidebar Widget Font Size */ .sidebar .widget { font-size : 16px; } /* Sidebar Widget Title Font Size */ .sidebar .widget .widget-title { font-size : 20px; } Didn't seem to amend the text I was hoping to alter. Thanks for your help