my-buf/index.tsx

import ReactDOM from 'react-dom/client';
import './index.css';
import reportWebVitals from './reportWebVitals';
import './style/style.css';
import Header from './components/Header';
import Navigation from './components/Navigation';


const root = ReactDOM.createRoot(
  document.getElementById('root') as HTMLElement
);
root.render(
  <div>
	<div className='app-wrapper'>
		<div className='app-header'>
			<Header/>
		</div>
		<div className='app-navigation'>
			<Navigation/>
		</div>
		<div className='app-content'>
			контент
		</div>
	</div>
  </div>
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();