CSS Code, How can I modify the font in gallery

Site URL: https://wombat-buttercup-7nmx.squarespace.com/

Could you please guide me what css code I can change the font in the description of photos in gallery session.

Thank you so much

Add to Design > Custom CSS

/* Gallery font */
.gallery-caption p.gallery-caption-content {
    font-size: 20px;
    color: red;
    font-family: monospace;
}