Изменить кнопку Woocommerce на иконку

.single_add_to_cart_button:before {
     font-family: 'Font Awesome 5 Free';
     font-weight: 900;
     content: "\f290";
     margin-right: .2em;
  }
.add_to_cart_button::before {
     font-family: 'Font Awesome 5 Free';
     font-weight: 900;
     content: "\f217";
     margin-right: .2em;
  }

/* Add to cart */
add_filter( 'woocommerce_product_single_add_to_cart_text', 'tb_woo_custom_cart_button_text' );
add_filter( 'woocommerce_product_add_to_cart_text', 'tb_woo_custom_cart_button_text' );   
function tb_woo_custom_cart_button_text() {
        return __( '', 'woocommerce' );
}
add_filter('woocommerce_product_add_to_cart_text', 'woo_custom_cart_button_text');
  
	function woo_custom_cart_button_text() {
		return "";
	}