heading
ElementElementElement functions can be customized with set
and show
rules.
set
and show
rules.A section heading.
With headings, you can structure your document into sections. Each heading has a level, which starts at one and is unbounded upwards. This level indicates the logical role of the following content (section, subsection, etc.) A top-level heading indicates a top-level section of the document (not the document's title).
Typst can automatically number your headings for you. To enable numbering, specify how you want your headings to be numbered with a numbering pattern or function.
Independently of the numbering, Typst can also automatically generate an
outline of all headings for you. To exclude one or more headings from this
outline, you can set the outlined
parameter to false
.
Example
#set heading(numbering: "1.a)")
= Introduction
In recent years, ...
== Preliminaries
To start, ...

Syntax
Headings have dedicated syntax: They can be created by starting a line with
one or multiple equals signs, followed by a space. The number of equals
signs determines the heading's logical nesting depth. The offset
field
can be set to configure the starting depth.
ParameterParameterParameters are input values for functions. Specify them in parentheses after the function name.
level
The absolute nesting depth of the heading, starting from one. If set
to auto
, it is computed from offset + depth
.
This is primarily useful for usage in show rules
(either with where
selectors or by accessing the
level directly on a shown heading).
Default value: auto
Show example
#show heading.where(level: 2): set text(red)
= Level 1
== Level 2
#set heading(offset: 1)
= Also level 2
== Level 3

depth
SettableSettableSettable parameters can be set using the set
rule, changing the default value used thereafter.
set
rule, changing the default value used thereafter.The relative nesting depth of the heading, starting from one. This is
combined with offset
to compute the actual level
.
This is set by the heading syntax, such that == Heading
creates a
heading with logical depth of 2, but actual level offset + 2
. If you
construct a heading manually, you should typically prefer this over
setting the absolute level.
Default value: 1
offset
SettableSettableSettable parameters can be set using the set
rule, changing the default value used thereafter.
set
rule, changing the default value used thereafter.The starting offset of each heading's level
, used to turn its
relative depth
into its absolute level
.
Default value: 0
Show example
= Level 1
#set heading(offset: 1, numbering: "1.1")
= Level 2
#heading(offset: 2, depth: 2)[
I'm level 4
]

numbering
How to number the heading. Accepts a numbering pattern or function taking multiple numbers.
Default value: none
Show example
#set heading(numbering: "1.a.")
= A section
== A subsection
=== A sub-subsection

supplement
A supplement for the heading.
For references to headings, this is added before the referenced number.
If a function is specified, it is passed the referenced heading and should return content.
Default value: auto
Show example
#set heading(numbering: "1.", supplement: [Chapter])
= Introduction <intro>
In @intro, we see how to turn
Sections into Chapters. And
in @intro[Part], it is done
manually.

outlined
SettableSettableSettable parameters can be set using the set
rule, changing the default value used thereafter.
set
rule, changing the default value used thereafter.Whether the heading should appear in the outline.
Note that this property, if set to true
, ensures the heading is also
shown as a bookmark in the exported PDF's outline (when exporting to
PDF). To change that behavior, use the bookmarked
property.
Default value: true
Show example
#outline()
#heading[Normal]
This is a normal heading.
#heading(outlined: false)[Hidden]
This heading does not appear
in the outline.

bookmarked
Whether the heading should appear as a bookmark in the exported PDF's outline. Doesn't affect other export formats, such as PNG.
The default value of auto
indicates that the heading will only
appear in the exported PDF's outline if its outlined
property is set
to true
, that is, if it would also be listed in Typst's outline.
Setting this property to either true
(bookmark) or false
(don't
bookmark) bypasses that behavior.
Default value: auto
Show example
#heading[Normal heading]
This heading will be shown in
the PDF's bookmark outline.
#heading(bookmarked: false)[Not bookmarked]
This heading won't be
bookmarked in the resulting
PDF.

hanging-indent
The indent all but the first line of a heading should have.
The default value of auto
uses the width of the numbering as indent
if the heading is aligned at the start of the text
direction, and no indent for center and other alignments.
Default value: auto
Show example
#set heading(numbering: "1.")
= A very, very, very, very, very, very long heading
#show heading: set align(center)
== A very long heading\ with center alignment

body
RequiredRequiredRequired parameters must be specified when calling the function.PositionalPositionalPositional parameters can be set by specifying them in order, omitting the parameter name.
The heading's title.