How to change the default font to my custom font for Commerce page?

Site URL: https://www.collaclothing.com/

Hi all,

Website URL above. Password is colla2022

This is for a client site. I would like to change the 'Subtotal' text on the 'Cart' page to be one of my custom fonts. I've had help coding all other text on the page to my preferred custom font. Can't figure out what the code should be here!

Help much appreciated. 🙂

Use this CSS

.cart-subtotal-label span {
    font-family: 'halyard-text' !important;
}