I am studying React with Bootstrap. What else do I need to post to see this in the browser ?
<!DOCTYPE html>
<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/<react-version>/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/<react-version>/react-dom.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-bootstrap/<version>/react-bootstrap.min.js"></script>
<body>
<div ></div>
<script>
const buttonsInstance = (
<ButtonToolbar>
<Button bsStyle="primary" bsSize="large" active>Primary button</Button>
<Button bsSize="large" active>Button</Button>
</ButtonToolbar>
);
ReactDOM.render(buttonsInstance, mountNode);
</script>
</body>
</html>