text: import React from 'react'
  import './App.css'
  
  import CssBaseline from '@material-ui/core/CssBaseline'
  import Header from '../Header/Header'
  import Quiz from '../Quiz/Quiz'
  
  class App extends React.Component {
    render () {
      return (
        <div className='App'>
          <CssBaseline />
          <Header />
          <Quiz />
        </div>
      )
    }
  }
  
  export default App
  