larger font throughout site

Hi i am trying to change the font for all pages and posts, not necessarily for the titles, but for the rest of the site. How to do this?

I have the churchope theme and tried adding this to the end of the style.css page and didn’t work.

body {
background:transparent url(images/gbck.gif) repeat scroll 0 0;
color:#666666;
font-family:Verdana,Arial,Helvetica,sans-serif;
CHANGE –> font-size:14px;
margin:0;
padding:0;
}

my site
https://www.torontopigsave.org