CDNでreact-diff-viewerを使う方法

<div id="root"></div>
<script crossorigin src="https://unpkg.com/react@17/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@17/umd/react-dom.development.js"></script>
<script src="https://bundle.run/react-diff-viewer@3.1.1"></script>
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
<script type="text/babel" src="script.js">

class App extends React.Component{
  constructor(props) {
    super(props);
    this.newText = "Hello World";
    this.oldText = "hello world!!";
  }
  render(){
    return <reactDiffViewer oldValue={this.oldText} newValue={this.newText} />
  }
}
ReactDOM.render(<App />, document.querySelector("#root"));