Change font size of widget titles?

I’m curious how to change the font size for the widget titles. I’ve been going through the CSS and I’ve tried various things, but no success. My website is if that helps at all.

To change font size for sidebar widgets you can add this code snippet to Theme Options - Other - Custom CSS. Just make sure to use font size that you want to use. This example will change font size to 40px.

#secondary .widget h3 {
    font-size: 40px;

Awesome, thank you!!!