text: import React from 'react'
  
  export default class DownloadButton extends React.Component {
  
    onClick(e) {
      this.props.onClick(e)
    }
  
    render() {
      return <button
        className="download-button"
        onClick={this.onClick.bind(this)}>
        Download
      </button>
    }
  
  }
  
  DownloadButton.propTypes = {
    onClick: React.PropTypes.func.isRequired
  }
  