content: import React from 'react';
  import { Surface, Brush } from 'recharts';
  
  export default React.createClass({
    render () {
      let data = [
          '2015-10-01',
          '2015-10-02',
          '2015-10-03',
          '2015-10-04',
          '2015-10-05',
          '2015-10-06',
          '2015-10-07',
          '2015-10-08',
          '2015-10-09',
          '2015-10-10',
          '2015-10-11',
          '2015-10-12',
          '2015-10-13',
          '2015-10-14',
          '2015-10-15',
          '2015-10-16',
          '2015-10-17',
          '2015-10-18',
          '2015-10-19',
          '2015-10-20',
          '2015-10-21',
          '2015-10-22',
          '2015-10-23',
          '2015-10-24',
          '2015-10-25',
          '2015-10-26',
          '2015-10-27',
          '2015-10-28',
          '2015-10-29',
          '2015-10-30'
        ];
  
      return (
        <Surface width={800} height={200}>
          <Brush x={100} y={50} width={400} height={40} data={data}/>
        </Surface>
      );
    }
  });
  
  