why does my react project dosent have any class

1import React, {Component} from 'react';
2import logo from './logo.svg';
3import './App.css';
4
5class App extends Component {
6  render() {
7    return (
8      <div className="App">
9        <header className="App-header">
10          <img src={logo} className="App-logo" alt="logo" />
11          <p>
12            Edit <code>src/App.js</code> and save to reload.
13          </p>
14          <a
15            className="App-link"
16            href="https://reactjs.org"
17            target="_blank"
18            rel="noopener noreferrer"
19          >
20            Learn React
21          </a>
22        </header>
23      </div>
24    );
25  }
26}
27export default App;