week 11/simplest-react-component.html

<!DOCTYPE html>
<html lang="en">
<head>
  <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>
</head>
<body>
  <div id="root"></div>
  <script>
    ReactDOM.render(React.createElement('h1', null, `Hello, world!`), document.getElementById("root"));
  </script>
</body>
</html>