<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Panorma</title>
  </head>
  <body></body>
  <script src="app.js"></script>
</html>

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Panorma</title>
    <link href="https://maxcdn.bootstrapcdn.com/bootswatch/3.3.5/paper/bootstrap.min.css"
      rel="stylesheet"
      integrity="sha256-hMIwZV8FylgKjXnmRI2YY0HLnozYr7Cuo1JvRtzmPWs= sha512-k+wW4K+gHODPy/0gaAMUNmCItIunOZ+PeLW7iZwkDZH/wMaTrSJTt7zK6TGy6p+rnDBghAxdvu1LX2Ohg0ypDw=="
      crossorigin="anonymous">
  </head>
  <body></body>
  <script>
    var WebFontConfig = {
      google: {families: ['Roboto:400,300,500:latin']}
    };
    (function() {
      var wf = document.createElement('script');
      wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
      '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
      wf.type = 'text/javascript';
      wf.async = 'true';
      var s = document.getElementsByTagName('script')[0];
      s.parentNode.insertBefore(wf, s);
    })();
  </script>
  <script src="app.js"></script>
</html>

Add bootstrap and Roboto font from google fonts
Add bootstrap and Roboto font from google fonts