Untitled

<!DOCTYPE html>
<html lang="pl">

<head>
  <meta charset="UTF-8">
  <title>Props React.js</title>
  <script src="https://unpkg.com/react/umd/react.development.js"></script>
  <script src="https://unpkg.com/react-dom/umd/react-dom.development.js"></script>
  <script src="https://unpkg.com/babel-standalone/babel.js"></script>
</head>
<body>
<div id="siema"></div>
<script type="text/babel">
function MojKomponent({ title="Modal", content }) {
  return (
    <div>
      <dialog open>
        <h1>{title}</h1>
        <p>{content}</p>
      </dialog>
    </div>
  );
}
ReactDOM.render(
  <MojKomponent title="Test"
  content="Teeest" />,
  document.getElementById("siema")
);
</script>


</body>
</html>