React need help

I am studying React with Bootstrap. What else do I need to post to see this in the browser ?

<!DOCTYPE html>
 <script src="<react-version>/react.min.js"></script>
<script src="<react-version>/react-dom.min.js"></script>
<script src="<version>/react-bootstrap.min.js"></script>
<div ></div>
 const buttonsInstance = (
    <Button bsStyle="primary" bsSize="large" active>Primary button</Button>
    <Button bsSize="large" active>Button</Button>
ReactDOM.render(buttonsInstance, mountNode);

You haven’t set your mountNode, but this doesn’t look like a Meteor question.

I don’t know how set mountNode. Where can see how it make? I recently began to study how to use React with Bootstrap.

i would advice to check some react tutorials first before you add meteor or even bootstrap into the mix.

But to answer your question: you don’t set mountNode as rob mentioned. The second argument of ReactDom.render is the dom element where the component gets attached to. See for more information