woocommerce cart css description
/* The "Apply Coupon" button */
.button[name="apply_coupon"] {
background-color: transparent;
color: #13aff0;
}
/* Fill the "Apply Coupon" button background color and underline it on hover */
.button[name="apply_coupon"]:hover {
background-color: transparent;
text-decoration: underline;
}
/* The "Update Cart" button */
.button[name="update_cart"] {
background-color: #e2e2e2;
color: #13aff0;
}
/* Brighten up the button on hover */
.button[name="update_cart"]:hover {
filter: brightness(115%);
}