text: import dash
  import dash_core_components as dcc
  import dash_html_components as html
  from dash.dependencies import Input, Output
  
  external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']
  
  app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
  
  app.layout = html.Div([
      dcc.Input(id='my-id', value='initial value', type='text'),
      html.Div(id='my-div')
  ])
  
  
  @app.callback(
      Output(component_id='my-div', component_property='children'),
      [Input(component_id='my-id', component_property='value')]
  )
  def update_output_div(input_value):
      return 'You\'ve entered "{}"'.format(input_value)
  
  
  if __name__ == '__main__':
      app.run_server(debug=True, host='127.0.0.1', port=6868)