Change font size on text in image card?

I'm trying to change the size of the font in the image card. It says it's "body" text, but it doesn't match the body text on the rest of the site. I'm using the Rover template.

Font of title, sub & link? Can you share site url? @krausjb

www.ruggedpups.com 

Just the sub I guess. But would be cool to know how to change all three

@krausjb Add to Home > Design > Custom CSS

.homepage .image-title-wrapper {
    font-size: 20px !important;
}
.homepage .image-subtitle-wrapper p {
    font-size: 50px !important;
}
.homepage .image-subtitle-wrapper a {
    font-size: 10px !important;
}