index.html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>ReactApp</title>

    <!-- Latest compiled and minified CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

    <!-- Optional theme -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css" integrity="sha384-fLW2N01lMqjakBkx3l/M9EahuwpSfeNvV63J5ezn3uZzapT0u7EYsXMjQV+0En5r" crossorigin="anonymous">

    <!-- build:css -->
    <link rel="stylesheet" href="dist/styles/main.css">
    <!-- endbuild -->
  </head>
  <body>
    <!-- Root of app -->
    <div id="content" class="container"></div>

    <!-- build:js -->
    <script src="dist/js/app.js"></script>
    <!-- endbuild -->
  </body>
</html>