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<!DOCTYPE html> <html> <head> <script src="https://unpkg.com/react@18/umd/react.development.js" crossorigin></script> <script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js" crossorigin></script> <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script> </head> <body> <div id="mydiv"></div> <script type="text/babel"> function Hello() { return <h1>Hello World!</h1>; } const container = document.getElementById('mydiv'); const root = ReactDOM.createRoot(container); root.render(<Hello />) </script> </body> </html>
