function save_order() {
    let name = $('#name').val()
    let address = $('#address').val()
    let size = $('#size').val()

    $.ajax({
        type: 'POST',
        url: '/mars',
        data: {name_give: name, address_give: address, size_give: size}
        success: function (response) {
            alert(response['msg'])
            window.location.reload()
        }
    });
}