index.html

<!DOCTYPE HTML>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>My Angular 2 App</title>

  <!--css-->
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootswatch/3.3.7/flatly/bootstrap.min.css">
  <style>body { padding: 50px 0; }</style>

  <!-- js -->
    <!-- load the dependencies -->
    <script src="node_modules/core-js/client/shim.min.js"></script>
    <script src="node_modules/zone.js/dist/zone.js"></script>
    <script src="node_modules/reflect-metadata/Reflect.js"></script>

    <!-- load our angular app with systemjs -->
    <script src="node_modules/systemjs/dist/system.src.js"></script>
    <script src="systemjs.config.js"></script>
    <script>
        System.import('app').catch(function(err) { console.error(err); });
    </script>

</head>
<body class="container">

  <my-app></my-app>

</body>
</html>