flasky/app/templates/index.html

{% extends "base.html" %}

{% block title %}Flasky{% endblock %}

{% block page_content %}
<div class="page-header">
    <h1>
        Hello, {% if current_user.is_authenticated %}{{ current_user.username }}{% else %}Stranger{% endif %}!
    </h1>
</div>
{% endblock %}