Font size huge on mobile, only in store

I'm working on my store and it looks great on desktop, but the product titles are not scaling on mobile. On Brine template. Any suggestions?

silverlakecarclub.com/shop

@silverlake Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
.view-list h1.ProductList-title {
   font-size: 16px !important;
}
}

See how to insert if you don't know: https://beaverhero.com/squarespace-how-to/#HowtoInsertCustomCSS

Exactly what I was looking for. Thank you!