templates/join.html

{% extends "base.html" %}

{% block content %}
  <article>
    <header><h2>Join the Conversation</h2></header>
    <p>Enter a name to start chirping. No password required!</p>
    <form method="POST">
        <input type="text" name="username" placeholder="Your Name" required autofocus>
        <button type="submit">Join</button>
    </form>
  </article>
{% endblock %}