brine related product text size

does anyone know code to change the title (heading?) text size/capitalization of related products in the brine template. The text size is huge compared to the rest of the site: https://www.verremodern.com/shop-1/blossom-bit for example

Add to Home > Design > Custom CSS

h2.ProductItem-relatedProducts-label {
    text-transform: capitalize;
    font-size: 20px;
}

@tuanphan thank you so much! worked perfectly!!!