Widgets too far apart

Gentlemen: I just finished installing your Catch Responsive Pro theme on my podcasting site "Hablando De Tecnología" (http://www.hablandodetecnologia.com). I'm quite happy with the results except for one thing. I would like to reduce the vertical spacing between each widget and the next on the right hand column. I find them too spread apart. I've tried several iterations of CSS but I haven't found the one that will do the trick. Could you please help? Best regards, Orlando Mergal