text: import React, { Component } from 'react';
  import logo from './logo.svg';
  import './App.css';
  import Clock from './Clock'
  import Toggler from './Toggler'
  
  class App extends Component {
    render() {
      return (
        <div className="App">
          <header className="App-header">
            <img src={logo} className="App-logo" alt="logo" />
            <h1 className="App-title">Welcome to React</h1>
          </header>
            <h1>Hello, world!</h1>
  
            <Toggler />
    </div>
      );
    }
  }
  
  
  export default App;
  