chat_application/templates/base.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Chat Experiment</title>
    <link rel="stylesheet" href="../static/styles/styles.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.0.1/socket.io.js" integrity="sha512-q/dWJ3kcmjBLU4Qc47E4A9kTB4m3wuTY7vkFJDTZKjTs8jhyGQnaUrxa0Ytd0ssMZhbNua9hE+E7Qv1j+DyZwA==" crossorigin="anonymous"></script>
  </head>
  <body>
    <div id="root">{% block content %} {% endblock %}</div>
  </body>
</html>