<!DOCTYPE html> <html lang="en"> <head> <title> {% block title %} {% endblock %} - FlaskApp </title> </head> <body> <nav> <p><a href="/list">user and tag list</a> | <a href="/documentation">Documentation</a></p> </nav> <hr> <div class="conntent"> {% block content %} {% endblock %} </div> </body> </html>