input.page_cart_db_input:-moz-read-only { /* For Firefox */
    border: 1px solid #ddd;
    opacity: 1;
}

input.page_cart_db_input:read-only {
    border: 1px solid #ddd;
    opacity: 1;
}

.page_cart_td_menny [type=text] {
    width: 46px;
}