{% extends "layout.html" %} {% block style %} .jumbotron { text-align: center; } h1.label { display: inline-block; margin-bottom: 0.3em; } form input, form button { display: block; margin: 0 auto; } .form-control { width: 40%; min-width: 280px; } {% endblock %} {% block body %} <div class="container"> <div class="jumbotron"> <form method="post"> <h1 class="label">What's yer username?</h1> <input class="username form-group form-control" type="text" name="username" required> <button class="btn btn-success form-group form-control" type="submit">Get me that juicy Plus!</button> </form> </div> </div> {% endblock %}