text: import React, {PropTypes} from 'react';
  import Header from './common/Header';
  
  class App extends React.Component {
      render() {
          return (
              <div className="container-fluid">
              <Header/>
              {this.props.children}
              </div>
          );
      }
  }
  
  App.propTypes = {
      children: PropTypes.object.isRequired
  };
  
  export default App;
  