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-.. _template-inheritance:
-
-Template Inheritance
-====================
-
-The most powerful part of Jinja is template inheritance. Template inheritance
-allows you to build a base "skeleton" template that contains all the common
-elements of your site and defines **blocks** that child templates can override.
-
-Sounds complicated but is very basic. It's easiest to understand it by starting
-with an example.
-
-
-Base Template
--------------
-
-This template, which we'll call ``layout.html``, defines a simple HTML skeleton
-document that you might use for a simple two-column page. It's the job of
-"child" templates to fill the empty blocks with content:
-
-.. sourcecode:: html+jinja
-
- <!doctype html>
- <html>
- <head>
- {% block head %}
- <link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
- <title>{% block title %}{% endblock %} - My Webpage</title>
- {% endblock %}
- </head>
- <body>
- <div id="content">{% block content %}{% endblock %}</div>
- <div id="footer">
- {% block footer %}
- &copy; Copyright 2010 by <a href="http://domain.invalid/">you</a>.
- {% endblock %}
- </div>
- </body>
-
-In this example, the ``{% block %}`` tags define four blocks that child templates
-can fill in. All the `block` tag does is tell the template engine that a
-child template may override those portions of the template.
-
-Child Template
---------------
-
-A child template might look like this:
-
-.. sourcecode:: html+jinja
-
- {% extends "layout.html" %}
- {% block title %}Index{% endblock %}
- {% block head %}
- {{ super() }}
- <style type="text/css">
- .important { color: #336699; }
- </style>
- {% endblock %}
- {% block content %}
- <h1>Index</h1>
- <p class="important">
- Welcome on my awesome homepage.
- {% endblock %}
-
-The ``{% extends %}`` tag is the key here. It tells the template engine that
-this template "extends" another template. When the template system evaluates
-this template, first it locates the parent. The extends tag must be the
-first tag in the template. To render the contents of a block defined in
-the parent template, use ``{{ super() }}``.