== Jekyll Variables

Jekyll traverses your site looking for files to process. Any files with `YAML
front matter` are subject to processing. For each of these files, Jekyll makes
a variety of data available via the `Liquid templating system`.

The following is a reference of the available data.

=== Global Variables

include::../tables/global_variables.asciidoc[]

=== Site Variables

include::../tables/site_variables.asciidoc[]

=== Page Variables

include::../tables/page_variables.asciidoc[]

[TIP]
====
Use Custom Front Matter

Any custom front matter that you specify will be available under `page`.
For example, if you specify `custom_css: true` in a pages front matter,
that value will be available as `page.custom_css`.

If you specify front matter in a layout, access that via `layout`. For
example, if you specify `class: full_page` in a pages front matter,
that value will be available as `layout.class` in the layout and its
parents.
====