.woocommerce div.product form.cart .button{background-color:black;color:white}.woocommerce div.product form.cart .button:hover{background-color:white;color:black}.woocommerce .product .add_to_cart_button.button{background-color:black;color:white}.woocommerce .product .add_to_cart_button.button:hover{background-color:white;color:black}