templates/temp.html

<!doctype html>
<html>
  <head>
    <title>Device Authentication Grant Workflow Sample</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" type="text/css" href="/static/css/index.css" />
    <!-- Include Prism.js CSS -->
    <link
      href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.25.0/themes/prism.min.css"
      rel="stylesheet"
    />
  </head>
  <body>
    {% block content %} {% endblock %}
  </body>
</html>