code: function() {
      var fonts = ["Roboto", "Bitter", "Pacifico"];
      var options = fonts.map(name => {
        // setting style on an <option> does not work in WebView...
        return <option key={name} value={name}>{name}</option>;
      });
      return <select className="select" valueLink={this.linkState('fontFamily')}>{ options }</select>;
    }
docs: Generate the dropdown selector for fonts, with each font option
  styled in the appropriate font.
  @return {[type]}