duct_name {
            width: 150px;
        }

        #product_price {
            width: 150px;
        }

        #product_number {
            width: 100px;
        }

        .slide {
            display: none;
        }

        .clear {
            width: 80px;
        }

        .price,
        .number {
            text-align: right;
        }

        #error {
            color: #FF0000;
            font-weight: bold;
        }

        #sendDataFunc div {
            padding: 5px;
            m