m('.pure-control-group', [
                        m('label', 'Chave da planilha no Google Drive'),
                        m("input.pure-input-2-3[placeholder=Ex.: 1gKGxto-RDqS5k2F3TbLXnOoj6IB6RFp18K_MUzBP_Hw]",
                            {onchange: m.withAttr("value", ds.key), value: ds.key()})
                    ]),