index.js

import React, { useState } from "react" 
import { useTransition } from "react-spring" 
import Modal from "./Modal";
    
function App() { 
  return ( 
    <div className="App"> 
      <Modal /> 
    </div> 
  ); 
}
    
const rootElement = document.getElementById("root"); ReactDOM.render(<App />, rootElement);