I have this simple code to test if react works but for whatever reason it does not render anything. I've no idea what the problem is.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script crossorigin src="https://unpkg.com/react@17/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@17/umd/react-dom.production.min.js"></script>
<title>Document</title>
</head>
<body>
<div id="root"></div>
<script type = "text/babel">
ReactDOM.render(<p>'test'</p>, document.getElementById("root"));
</script>
</body>
</html>If you want to use babel in the browser you need to load it.
Add the following script just before the react one.
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
Please refer to the documentation https://babeljs.io/docs/en/babel-standalone