---
title: Content Sections
linktitle: Sections
description: "Hugo generates a **section tree** that matches your content."
date: 2017-02-01
publishdate: 2017-02-01
lastmod: 2017-02-01
categories: [content management]
keywords: [lists,sections,content types,organization]
menu:
  docs:
    parent: "content-management"
    weight: 50
weight: 50	#rem
draft: false
aliases: [/content/sections/]
toc: true
---

A **Section** is a collection of pages that gets defined based on the
organization structure under the `content/` directory.

By default, all the **first-level** directories under `content/` form their own
sections (**root sections**) provided they constitute [Branch Bundles][branch bundles].
Directories which are just [Leaf Bundles][leaf bundles] do *not* form
their own sections, despite being first-level directories.

If a user needs to define a section `foo` at a deeper level, they need to create
a directory named `foo` with an `_index.md` file (see [Branch Bundles][branch bundles]
for more information).


{{% note %}}
A **section** cannot be defined or overridden by a front matter parameter -- it
is strictly derived from the content organization structure.
{{% /note %}}

## Nested Sections

The sections can be nested as deeply as you need.

```bash
content
└── blog        <-- Section, because first-level dir under content/
    ├── funny-cats
    │   ├── mypost.md
    │   └── kittens         <-- Section, because contains _index.md
    │       └── _index.md
    └── tech                <-- Section, because contains _index.md
        └── _index.md
```

**The important part to understand is, that to make the section tree fully navigational, at least the lower-most section needs a content file. (e.g. `_index.md`).**

{{% note %}}
When we talk about a **section** in correlation with template selection, it is
currently always the *root section* only (`/blog/funny-cats/mypost/ => blog`).

If you need a specific template for a sub-section, you need to adjust either the `type` or `layout` in front matter.
{{% /note %}}

## Example: Breadcrumb Navigation

With the available [section variables and methods](#section-page-variables-and-methods) you can build powerful navigation. One common example would be a partial to show Breadcrumb navigation:

{{< code file="layouts/partials/breadcrumb.html" download="breadcrumb.html" >}}
<ol  class="nav navbar-nav">
  {{ template "breadcrumbnav" (dict "p1" . "p2" .) }}
</ol>
{{ define "breadcrumbnav" }}
{{ if .p1.Parent }}
{{ template "breadcrumbnav" (dict "p1" .p1.Parent "p2" .p2 )  }}
{{ else if not .p1.IsHome }}
{{ template "breadcrumbnav" (dict "p1" .p1.Site.Home "p2" .p2 )  }}
{{ end }}
<li{{ if eq .p1 .p2 }} class="active"{{ end }}>
  <a href="{{ .p1.Permalink }}">{{ .p1.Title }}</a>
</li>
{{ end }}
{{< /code >}}

## Section Page Variables and Methods

Also see [Page Variables](/variables/page/).

{{< readfile file="/content/en/readfiles/sectionvars.md" markdown="true" >}}

## Content Section Lists

Hugo will automatically create pages for each *root section* that list all of the content in that section. See the documentation on [section templates][] for details on customizing the way these pages are rendered.

## Content *Section* vs Content *Type*

By default, everything created within a section will use the [content `type`][content type] that matches the *root section* name. For example, Hugo will assume that `posts/post-1.md` has a `posts` content `type`. If you are using an [archetype][] for your `posts` section, Hugo will generate front matter according to what it finds in `archetypes/posts.md`.

[archetype]: /content-management/archetypes/
[content type]: /content-management/types/
[directory structure]: /getting-started/directory-structure/
[section templates]: /templates/section-templates/
[leaf bundles]: /content-management/page-bundles/#leaf-bundles
[branch bundles]: /content-management/page-bundles/#branch-bundles