Can't change the font on quotes section

Hi!

I want to change the font on this quotes section: 

I would like the body copy on Freight Sans, like the rest of the body copy on the website, but I can't seem to find a way to do it! Is that possible?
Also, I would like the names below to be a bit bigger.

Thanks!

From the Squarespace menu, go to Design=>Custom CSS

Input the following, but be sure to change the font family, weight, spacing, and size to whatever you want.

.sqs-block-quote .source {
    font-family: itc-avant-garde-gothic-pro;
    font-size:10;
    letter-spacing:-0.06em;
    font-weight:700;
    font-style:italic;
}

.sqs-block-quote blockquote {
    font-family: itc-avant-garde-gothic-pro;
    font-size:10;
    letter-spacing:-0.06em;
    font-weight:700;
    font-style:italic;
}