.products .product.yith-pre-order-product a.button.product_type_simple,.single-product .product.yith-pre-order-product .single_add_to_cart_button{background:#e29c1a;color:#fff}.products .product.yith-pre-order-product a.button.product_type_simple:hover,.single-product .product.yith-pre-order-product .single_add_to_cart_button:hover{background:#d68e0a;color:#fff}