Change font in photo comments

Please provide a link to one of the pages what has a photo with comments.

Link to photo wiev
https://hagdahlseniorcenter.com/bildgalleri/#jp-carousel-1741

.jp-carousel-comment .comment-content {
    font-size: 20px;
}

Set the font size to your liking.

To add or override CSS: use the “Additional CSS” option in the customizer. https://codex.www.ads-software.com/CSS#Custom_CSS_in_WordPress

Learn to use the Chrome Developer Tools to help you see and test changes to your CSS.

Thanks very much!