text: import NumberInputWidget    from '..';
  import React                from 'react';
  import ReactDOM             from 'react-dom';
  
  function onChange(value, name) {
      console.log(name, value);
  }
  
  ReactDOM.render(
      React.createElement(
          NumberInputWidget,
          {
            name: 'sample',
            min: '0',
            max: '100',
            step: '2',
            value: 50,
            onChange,
          } ),
      document.querySelector('.content'));
  