Reply To: Need css code to on chang add to cart button text font size and bold

Hello,

Here is CSS code:

/*grid*/

.basel-hover-alt .btn-add>a {
    color: #000;
    font-size:20px;
    font-weight: 700;
}

/*product page */

.single_add_to_cart_button {
     font-weight: 700;
    font-size: 30px;
}

Change the values as per your needs and add the code to the Theme Settings > Custom CSS

Best Regards