How to change overall font size in Enfold?

Hi. No doubt the answer to my question is an obvious one, but I cannot find settings for font size–just for font type, font color, etc. I’m aware that different font faces can differ in size, but I’m using the same font–Open Sans–as the Enfold demo. Yet the Enfold demo site-wide text ( not just main body text, but ALL text, even breadcrumbs) is noticeably larger. I know I can change font size within a given element using inline css in a text box–but where is the setting for overall (site-wide) text size?

Thanks!