content: import React from 'react';
  import { render } from 'react-dom';
  import App from './App';
  
  const list = [
    { id: 1, title: 'Element 1' },
    { id: 2, title: 'Element 2' },
    { id: '3', title: 'Element 3' },
    { id: 4 },
  ];
  
  render(<App list={list} />, document.getElementById('root'));
  