14 KiB
Setting up navigation
A clear and concise navigation structure is an important aspect of good project documentation. Material for MkDocs provides a multitude of options to configure the behavior of navigational elements, including tabs and sections, and one of its flagship features: instant loading.
Configuration
Instant loading
When instant loading is enabled, clicks on all internal links will be
intercepted and dispatched via XHR without fully reloading the page. Add
the following lines to mkdocs.yml
:
theme:
features:
- navigation.instant
The resulting page is parsed and injected and all event handlers and components are rebound automatically, i.e., Material for MkDocs now behaves like a Single Page Application. Now, the search index survives navigation, which is especially useful for large documentation sites.
Instant prefetching :material-alert-decagram:
Instant prefetching is a new experimental feature that will start to fetch a page once the user hovers over a link. This will reduce the perceived loading time for the user, especially on slow connections, as the page will be available immediately upon navigation. Enable it with:
theme:
features:
- navigation.instant
- navigation.instant.prefetch
Anchor tracking
When anchor tracking is enabled, the URL in the address bar is automatically
updated with the active anchor as highlighted in the table of contents. Add the
following lines to mkdocs.yml
:
theme:
features:
- navigation.tracking
Navigation tabs
When tabs are enabled, top-level sections are rendered in a menu layer below
the header for viewports above 1220px
, but remain as-is on mobile.1 Add
the following lines to mkdocs.yml
:
theme:
features:
- navigation.tabs
=== "With tabs"
[![Navigation tabs enabled]][Navigation tabs enabled]
=== "Without"
[![Navigation tabs disabled]][Navigation tabs disabled]
Sticky navigation tabs
When sticky tabs are enabled, navigation tabs will lock below the header and
always remain visible when scrolling down. Just add the following two feature
flags to mkdocs.yml
:
theme:
features:
- navigation.tabs
- navigation.tabs.sticky
=== "With sticky tabs"
[![Sticky navigation tabs enabled]][Sticky navigation tabs enabled]
=== "Without"
[![Sticky navigation tabs disabled]][Sticky navigation tabs disabled]
Navigation sections
When sections are enabled, top-level sections are rendered as groups in the
sidebar for viewports above 1220px
, but remain as-is on mobile. Add the
following lines to mkdocs.yml
:
theme:
features:
- navigation.sections
=== "With sections"
[![Navigation sections enabled]][Navigation sections enabled]
=== "Without"
[![Navigation sections disabled]][Navigation sections disabled]
Both feature flags, navigation.tabs
and
navigation.sections
, can be combined with each other. If both
feature flags are enabled, sections are rendered for level 2 navigation items.
Navigation expansion
When expansion is enabled, the left sidebar will expand all collapsible
subsections by default, so the user doesn't have to open subsections manually.
Add the following lines to mkdocs.yml
:
theme:
features:
- navigation.expand
=== "With expansion"
[![Navigation expansion enabled]][Navigation expansion enabled]
=== "Without"
[![Navigation expansion disabled]][Navigation expansion disabled]
Navigation path Breadcrumbs
When navigation paths are activated, a breadcrumb navigation is rendered above
the title of each page, which might make orientation easier for users visiting your
documentation on devices with smaller screens. Add the following lines to
mkdocs.yml
:
theme:
features:
- navigation.path
=== "With navigation path"
[![Navigation path enabled]][Navigation path enabled]
=== "Without"
[![Navigation path disabled]][Navigation path disabled]
Navigation pruning
When pruning is enabled, only the visible navigation items are included in the
rendered HTML, reducing the size of the built site by 33% or more. Add the
following lines to mkdocs.yml
:
theme:
features:
- navigation.prune # (1)!
- This feature flag is not compatible with
navigation.expand
, as navigation expansion requires the complete navigation structure.
This feature flag is especially useful for documentation sites with 100+ or even 1,000+ of pages, as the navigation makes up a significant fraction of the HTML. Navigation pruning will replace all expandable sections with links to the first page in that section (or the section index page).
Section index pages
When section index pages are enabled, documents can be directly attached to
sections, which is particularly useful for providing overview pages. Add the
following lines to mkdocs.yml
:
theme:
features:
- navigation.indexes # (1)!
- This feature flag is not compatible with
toc.integrate
, as sections cannot host the table of contents due to missing space.
=== "With section index pages"
[![Section index pages enabled]][Section index pages enabled]
=== "Without"
[![Section index pages disabled]][Section index pages disabled]
In order to link a page to a section, create a new document with the name
index.md
in the respective folder, and add it to the beginning of your
navigation section:
nav:
- Section:
- section/index.md # (1)!
- Page 1: section/page-1.md
...
- Page n: section/page-n.md
- MkDocs also considers files called
README.md
as index pages.
Table of contents
Anchor following
When anchor following for the table of contents is enabled, the sidebar is
automatically scrolled so that the active anchor is always visible. Add the
following lines to mkdocs.yml
:
theme:
features:
- toc.follow
Navigation integration
When navigation integration for the table of contents is enabled, it is always
rendered as part of the navigation sidebar on the left. Add the following lines
to mkdocs.yml
:
theme:
features:
- toc.integrate # (1)!
- This feature flag is not compatible with
navigation.indexes
, as sections cannot host the table of contents due to missing space.
=== "With navigation integration"
[![Navigation integration enabled]][Navigation integration enabled]
=== "Without"
[![Navigation integration disabled]][Navigation integration disabled]
Back-to-top button
A back-to-top button can be shown when the user, after scrolling down, starts
to scroll up again. It's rendered centered and just below the header. Add the
following lines to mkdocs.yml
:
theme:
features:
- navigation.top
Usage
Hiding the sidebars
The navigation and/or table of contents sidebars can be hidden for a document
with the front matter hide
property. Add the following lines at the top of a
Markdown file:
---
hide:
- navigation
- toc
---
# Page title
...
=== "Hide navigation"
[![Hide navigation enabled]][Hide navigation enabled]
=== "Hide table of contents"
[![Hide table of contents enabled]][Hide table of contents enabled]
=== "Hide both"
[![Hide both enabled]][Hide both enabled]
Hiding the navigation path
While the navigation path is rendered above the main headline, sometimes, it
might be desirable to hide it for a specific page, which can be achieved with
the front matter hide
property:
---
hide:
- path
---
# Page title
...
Customization
Keyboard shortcuts
Material for MkDocs includes several keyboard shortcuts that make it possible to navigate your project documentation via keyboard. There are two modes:
: This mode is active when the search is focused. It provides several key bindings to make search accessible and navigable via keyboard:
* ++arrow-down++ , ++arrow-up++ : select next / previous result
* ++esc++ , ++tab++ : close search dialog
* ++enter++ : follow selected result
: This mode is active when search is not focussed and when there's no other focussed element that is susceptible to keyboard input. The following keys are bound:
* ++f++ , ++s++ , ++slash++ : open search dialog
* ++p++ , ++comma++ : go to previous page
* ++n++ , ++period++ : go to next page
Let's say you want to bind some action to the ++x++ key. By using additional
JavaScript, you can subscribe to the keyboard$
observable and attach
your custom event listener:
=== ":octicons-file-code-16: docs/javascripts/shortcuts.js
"
``` js
keyboard$.subscribe(function(key) {
if (key.mode === "global" && key.type === "x") {
/* Add custom keyboard handler here */
key.claim() // (1)!
}
})
```
1. The call to `key.claim()` will execute `preventDefault()` on the
underlying event, so the keypress will not propagate further and
touch other event listeners.
=== ":octicons-file-code-16: mkdocs.yml
"
``` yaml
extra_javascript:
- javascripts/shortcuts.js
```
Content area width
The width of the content area is set so the length of each line doesn't exceed 80-100 characters, depending on the width of the characters. While this is a reasonable default, as longer lines tend to be harder to read, it may be desirable to increase the overall width of the content area, or even make it stretch to the entire available space.
This can easily be achieved with an additional style sheet and a few lines of CSS:
=== ":octicons-file-code-16: docs/stylesheets/extra.css
"
``` css
.md-grid {
max-width: 1440px; /* (1)! */
}
```
1. If you want the content area to always stretch to the available screen
space, reset `max-width` with the following CSS:
``` css
.md-grid {
max-width: initial;
}
```
=== ":octicons-file-code-16: mkdocs.yml
"
``` yaml
extra_css:
- stylesheets/extra.css
```
-
Prior to , navigation tabs had a slightly different behavior. All top-level pages (i.e. all top-level entries directly referring to a
*.md
file) defined inside thenav
entry ofmkdocs.yml
were grouped under the first tab which received the title of the first page. This made it impossible to include a top-level page (or external link) as a tab item, as was reported in #1884 and #2072. From on, navigation tabs include all top-level pages and sections. ↩︎