Edit Font for Testimonials

Hi James,

Are you pertaining to this body of text? https://share.getcloudapp.com/llukwxAR

If yes, try this CSS:

blockquote.wp-block-quote {
    font-size: 16px;
}

where do i add this code?

It's a CSS.

Here's how to add CSS - https://docs.generatepress.com/article/adding-css/

The easy way is by adding it through Appearance > customize > Additional CSS. You should see a code area. You can add it there. :D