is there a way to make react App flex box without wrapping it inside a div?

const App = () => {
  return (
    <Router>
      <Aside1 />
      <Aside2/>
      <Routes>
        <Route path='/' element={<Home />} />
        <Route path='/movies' element={<Movies />} />
        <Route path='/tvshows' element={<TvShows />} />
      </Routes>
    </Router>
  )
}

const App = () => {
  return (
    <Router>
      <Aside1 />
      <Aside2/>
      <Routes>
        <Route path='/' element={<Home />} />
        <Route path='/movies' element={<Movies />} />
        <Route path='/tvshows' element={<TvShows />} />
      </Routes>
    </Router>
  )
}