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v0.dev.2025-10-13
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Typed HTML

A typed layer over raw HTML elements.

The html module provides a typed layer over the raw html.elem function that allows you to conveniently create HTML elements. HTML attributes are exposed as function parameters that accept Typst types and automatically take care of converting those into the appropriate HTML.

Some parameters are common to all typed HTML functions. These are listed at the bottom in the Global Attributes section instead of explicitly on each element for readability.

Example

#html.video(
  controls: true,
  width: 1280,
  height: 720,
  src: "sunrise.mp4",
)[
  Your browser does not support the video tag.
]

Function

a

Hyperlink.

html.a(
download:
str
,
href:
str
,
hreflang:
str
,
ping:
strarray
,
referrerpolicy:
nonestr
,
rel:
strarray
,
target:
str
,
type:
str
,
content
)->
content

download
str

Whether to download the resource instead of navigating to it, and its filename if so.

href
str

Address of the hyperlink.

hreflang
str

Language of the linked resource.

ping
strarray

URLs to ping.

referrerpolicy
nonestr

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

rel
strarray

Relationship between the location in the document containing the hyperlink and the destination resource.

Available string values
  • alternate
  • canonical
  • author
  • bookmark
  • dns-prefetch
  • expect
  • external
  • help
  • icon
  • manifest
  • modulepreload
  • license
  • next
  • nofollow
  • noopener
  • noreferrer
  • opener
  • pingback
  • preconnect
  • prefetch
  • preload
  • prev
  • privacy-policy
  • search
  • stylesheet
  • tag
  • terms-of-service

target
str

Navigable for hyperlink navigation.

Available string values
  • _blank
  • _self
  • _parent
  • _top

type
str

Hint for the type of the referenced resource.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

abbr

Abbreviation.

html.abbr(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

address

Contact information for a page or article element.

html.address(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

area

Hyperlink or dead area on an image map.

html.area(
alt:
str
,
coords:
array
,
download:
str
,
href:
str
,
ping:
strarray
,
referrerpolicy:
nonestr
,
rel:
strarray
,
shape:
str
,
target:
str
)->
content

alt
str

Replacement text for use when images are not available.

coords
array

Coordinates for the shape to be created in an image map. Expects an array of floating point numbers.

download
str

Whether to download the resource instead of navigating to it, and its filename if so.

href
str

Address of the hyperlink.

ping
strarray

URLs to ping.

referrerpolicy
nonestr

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

rel
strarray

Relationship between the location in the document containing the hyperlink and the destination resource.

Available string values
  • alternate
  • canonical
  • author
  • bookmark
  • dns-prefetch
  • expect
  • external
  • help
  • icon
  • manifest
  • modulepreload
  • license
  • next
  • nofollow
  • noopener
  • noreferrer
  • opener
  • pingback
  • preconnect
  • prefetch
  • preload
  • prev
  • privacy-policy
  • search
  • stylesheet
  • tag
  • terms-of-service

shape
str

The kind of shape to be created in an image map.

Available string values
  • circle
  • default
  • poly
  • rect

target
str

Navigable for hyperlink navigation.

Available string values
  • _blank
  • _self
  • _parent
  • _top

article

Self-contained syndicatable or reusable composition.

html.article(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

aside

Sidebar for tangentially related content.

html.aside(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

audio

Audio player.

html.audio(
autoplay:
bool
,
controls:
bool
,
crossorigin:
str
,
loop:
bool
,
muted:
bool
,
preload:
noneautostr
,
src:
str
,
content
)->
content

autoplay
bool

Hint that the media resource can be started automatically when the page is loaded.

controls
bool

Show user agent controls.

crossorigin
str

How the element handles crossorigin requests.

Available string values
  • anonymous
  • use-credentials

loop
bool

Whether to loop the media resource.

muted
bool

Whether to mute the media resource by default.

preload
noneautostr

Hints how much buffering the media resource will likely need.

Available string values
  • metadata

src
str

Address of the resource.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

b

Keywords.

html.b(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

base

Base URL and default target navigable for hyperlinks and forms.

html.base(
href:
str
,
target:
str
)->
content

href
str

Document base URL.

target
str

Default navigable for hyperlink navigation and form submission.

Available string values
  • _blank
  • _self
  • _parent
  • _top

bdi

Text directionality isolation.

html.bdi(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

bdo

Text directionality formatting.

html.bdo(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

blockquote

A section quoted from another source.

html.blockquote(
cite:
str
,
content
)->
content

cite
str

Link to the source of the quotation or more information about the edit.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

body

Document body.

html.body(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

br

Line break, e.g. in poem or postal address.

html.br(
)->
content

button

Button control.

html.button(
command:
str
,
commandfor:
str
,
disabled:
bool
,
form:
str
,
formaction:
str
,
formenctype:
str
,
formmethod:
str
,
formnovalidate:
bool
,
formtarget:
str
,
name:
str
,
popovertarget:
str
,
popovertargetaction:
str
,
type:
str
,
value:
str
,
content
)->
content

command
str

Indicates to the targeted element which action to take.

Available string values
  • toggle-popover
  • show-popover
  • hide-popover
  • close
  • request-close
  • show-modal

commandfor
str

Targets another element to be invoked.

disabled
bool

Whether the form control is disabled.

form
str

Associates the element with a form element.

formaction
str

URL to use for form submission.

formenctype
str

Entry list encoding type to use for form submission.

Available string values
  • application/x-www-form-urlencoded
  • multipart/form-data
  • text/plain

formmethod
str

Variant to use for form submission.

Available string values
  • GET
  • POST
  • dialog

formnovalidate
bool

Bypass form control validation for form submission.

formtarget
str

Navigable for form submission.

Available string values
  • _blank
  • _self
  • _parent
  • _top

name
str

Name of the element to use for form submission and in the form.elements API.

popovertarget
str

Targets a popover element to toggle, show, or hide.

popovertargetaction
str

Indicates whether a targeted popover element is to be toggled, shown, or hidden.

Available string values
  • toggle
  • show
  • hide

type
str

Type of button.

Available string values
  • submit
  • reset
  • button

value
str

Value to be used for form submission.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

canvas

Scriptable bitmap canvas.

html.canvas(
height:
int
,
width:
int
,
content
)->
content

height
int

Vertical dimension.

width
int

Horizontal dimension.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

caption

Table caption.

html.caption(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

cite

Title of a work.

html.cite(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

code

Computer code.

html.code(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

col

Table column.

html.col(
span:
int
)->
content

span
int

Number of columns spanned by the element.

colgroup

Group of columns in a table.

html.colgroup(
span:
int
,
content
)->
content

span
int

Number of columns spanned by the element.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

data

Machine-readable equivalent.

html.data(
value:
str
,
content
)->
content

value
str

Machine-readable value.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

datalist

Container for options for combo box control.

html.datalist(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

dd

Content for corresponding dt element(s).

html.dd(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

del

A removal from the document.

html.del(
cite:
str
,
datetime:
datetime
,
content
)->
content

cite
str

Link to the source of the quotation or more information about the edit.

datetime
datetime

Date and (optionally) time of the change.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

details

Disclosure control for hiding details.

html.details(
name:
str
,
open:
bool
,
content
)->
content

name
str

Name of group of mutually-exclusive details elements.

open
bool

Whether the details are visible.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

dfn

Defining instance.

html.dfn(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

dialog

Dialog box or window.

html.dialog(
open:
bool
,
content
)->
content

open
bool

Whether the dialog box is showing.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

div

Generic flow container, or container for name-value groups in dl elements.

html.div(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

dl

Association list consisting of zero or more name-value groups.

html.dl(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

dt

Legend for corresponding dd element(s).

html.dt(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

em

Stress emphasis.

html.em(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

embed

Plugin.

html.embed(
height:
int
,
src:
str
,
type:
str
,
width:
int
)->
content

height
int

Vertical dimension.

src
str

Address of the resource.

type
str

Type of embedded resource.

width
int

Horizontal dimension.

fieldset

Group of form controls.

html.fieldset(
disabled:
bool
,
form:
str
,
name:
str
,
content
)->
content

disabled
bool

Whether the descendant form controls, except any inside legend, are disabled.

form
str

Associates the element with a form element.

name
str

Name of the element to use for form submission and in the form.elements API.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

figcaption

Caption for figure.

html.figcaption(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

figure

Figure with optional caption.

html.figure(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

Footer for a page or section.

html.footer(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

form

User-submittable form.

html.form(
accept-charset:
str
,
action:
str
,
autocomplete:
bool
,
enctype:
str
,
method:
str
,
name:
str
,
novalidate:
bool
,
rel:
strarray
,
target:
str
,
content
)->
content

accept-charset
str

Character encodings to use for form submission.

Available string values
  • utf-8

action
str

URL to use for form submission.

autocomplete
bool

Default setting for autofill feature for controls in the form.

enctype
str

Entry list encoding type to use for form submission.

Available string values
  • application/x-www-form-urlencoded
  • multipart/form-data
  • text/plain

method
str

Variant to use for form submission.

Available string values
  • GET
  • POST
  • dialog

name
str

Name of form to use in the document.forms API.

novalidate
bool

Bypass form control validation for form submission.

rel
strarray

Relationship between the document containing the form and its action destination

Available string values
  • alternate
  • canonical
  • author
  • bookmark
  • dns-prefetch
  • expect
  • external
  • help
  • icon
  • manifest
  • modulepreload
  • license
  • next
  • nofollow
  • noopener
  • noreferrer
  • opener
  • pingback
  • preconnect
  • prefetch
  • preload
  • prev
  • privacy-policy
  • search
  • stylesheet
  • tag
  • terms-of-service

target
str

Navigable for form submission.

Available string values
  • _blank
  • _self
  • _parent
  • _top

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h1

Heading.

html.h1(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h2

Heading.

html.h2(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h3

Heading.

html.h3(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h4

Heading.

html.h4(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h5

Heading.

html.h5(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

h6

Heading.

html.h6(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

head

Container for document metadata.

html.head(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

header

Introductory or navigational aids for a page or section.

html.header(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

hgroup

Heading container.

html.hgroup(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

hr

Thematic break.

html.hr(
)->
content

html

Root element.

html.html(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

i

Alternate voice.

html.i(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

iframe

Child navigable.

html.iframe(
allow:
str
,
allowfullscreen:
bool
,
height:
int
,
loading:
str
,
name:
str
,
referrerpolicy:
nonestr
,
sandbox:
strarray
,
src:
str
,
srcdoc:
str
,
width:
int
,
content
)->
content

allow
str

Permissions policy to be applied to the iframe's contents.

allowfullscreen
bool

Whether to allow the iframe's contents to use requestFullscreen().

height
int

Vertical dimension.

loading
str

Used when determining loading deferral.

Available string values
  • lazy
  • eager

name
str

Name of content navigable.

Available string values
  • _blank
  • _self
  • _parent
  • _top

referrerpolicy
nonestr

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

sandbox
strarray

Security rules for nested content.

Available string values
  • allow-downloads
  • allow-forms
  • allow-modals
  • allow-orientation-lock
  • allow-pointer-lock
  • allow-popups
  • allow-popups-to-escape-sandbox
  • allow-presentation
  • allow-same-origin
  • allow-scripts
  • allow-top-navigation
  • allow-top-navigation-by-user-activation
  • allow-top-navigation-to-custom-protocols

src
str

Address of the resource.

srcdoc
str

A document to render in the iframe.

width
int

Horizontal dimension.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

img

Image.

html.img(
alt:
str
,
crossorigin:
str
,
decoding:
autostr
,
fetchpriority:
autostr
,
height:
int
,
ismap:
bool
,
loading:
str
,
referrerpolicy:
nonestr
,
sizes:
array
,
src:
str
,
srcset:
array
,
usemap:
str
,
width:
int
)->
content

alt
str

Replacement text for use when images are not available.

crossorigin
str

How the element handles crossorigin requests.

Available string values
  • anonymous
  • use-credentials

decoding
autostr

Decoding hint to use when processing this image for presentation.

Available string values
  • sync
  • async

fetchpriority
autostr

Sets the priority for fetches initiated by the element.

Available string values
  • high
  • low

height
int

Vertical dimension.

ismap
bool

Whether the image is a server-side image map.

loading
str

Used when determining loading deferral.

Available string values
  • lazy
  • eager

referrerpolicy
nonestr

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

sizes
array

Image sizes for different page layouts. Expects an array of dictionaries with the keys condition (string) and size (length).

src
str

Address of the resource.

srcset
array

Images to use in different situations, e.g., high-resolution displays, small monitors, etc. Expects an array of dictionaries with the keys src (string) and width (integer) or density (float).

usemap
str

Name of image map to use.

width
int

Horizontal dimension.

input

Form control.

html.input(
accept:
strarray
,
alpha:
bool
,
alt:
str
,
autocomplete:
strarray
,
checked:
bool
,
colorspace:
str
,
dirname:
str
,
disabled:
bool
,
form:
str
,
formaction:
str
,
formenctype:
str
,
formmethod:
str
,
formnovalidate:
bool
,
formtarget:
str
,
height:
int
,
list:
str
,
max:
floatdatetimestr
,
maxlength:
int
,
min:
floatdatetimestr
,
minlength:
int
,
multiple:
bool
,
name:
str
,
pattern:
str
,
placeholder:
str
,
popovertarget:
str
,
popovertargetaction:
str
,
readonly:
bool
,
required:
bool
,
size:
int
,
src:
str
,
step:
floatstr
,
type:
str
,
value:
floatcolordatetimestrarray
,
width:
int
)->
content

accept
strarray

Hint for expected file type in file upload controls.

alpha
bool

Allow the color's alpha component to be set.

alt
str

Replacement text for use when images are not available.

autocomplete
strarray

Hint for form autofill feature.

Available string values
  • shipping
  • billing
  • name
  • honorific-prefix
  • given-name
  • additional-name
  • family-name
  • honorific-suffix
  • nickname
  • username
  • new-password
  • current-password
  • one-time-code
  • organization-title
  • organization
  • street-address
  • address-line1
  • address-line2
  • address-line3
  • address-level4
  • address-level3
  • address-level2
  • address-level1
  • country
  • country-name
  • postal-code
  • cc-name
  • cc-given-name
  • cc-additional-name
  • cc-family-name
  • cc-number
  • cc-exp
  • cc-exp-month
  • cc-exp-year
  • cc-csc
  • cc-type
  • transaction-currency
  • transaction-amount
  • language
  • bday
  • bday-day
  • bday-month
  • bday-year
  • sex
  • url
  • photo
  • home
  • work
  • mobile
  • fax
  • pager
  • tel
  • tel-country-code
  • tel-national
  • tel-area-code
  • tel-local
  • tel-local-prefix
  • tel-local-suffix
  • tel-extension
  • email
  • impp

checked
bool

Whether the control is checked.

colorspace
str

The color space of the serialized color.

Available string values
  • limited-srgb
  • display-p3

dirname
str

Name of form control to use for sending the element's directionality in form submission.

disabled
bool

Whether the form control is disabled.

form
str

Associates the element with a form element.

formaction
str

URL to use for form submission.

formenctype
str

Entry list encoding type to use for form submission.

Available string values
  • application/x-www-form-urlencoded
  • multipart/form-data
  • text/plain

formmethod
str

Variant to use for form submission.

Available string values
  • GET
  • POST
  • dialog

formnovalidate
bool

Bypass form control validation for form submission.

formtarget
str

Navigable for form submission.

Available string values
  • _blank
  • _self
  • _parent
  • _top

height
int

Vertical dimension.

list
str

List of autocomplete options.

max
floatdatetimestr

Maximum value.

maxlength
int

Maximum length of value.

min
floatdatetimestr

Minimum value.

minlength
int

Minimum length of value.

multiple
bool

Whether to allow multiple values.

name
str

Name of the element to use for form submission and in the form.elements API.

pattern
str

Pattern to be matched by the form control's value.

placeholder
str

User-visible label to be placed within the form control.

popovertarget
str

Targets a popover element to toggle, show, or hide.

popovertargetaction
str

Indicates whether a targeted popover element is to be toggled, shown, or hidden.

Available string values
  • toggle
  • show
  • hide

readonly
bool

Whether to allow the value to be edited by the user.

required
bool

Whether the control is required for form submission.

size
int

Size of the control.

src
str

Address of the resource.

step
floatstr

Granularity to be matched by the form control's value.

Available string values
  • any

type
str

Type of form control.

Available string values
  • hidden
  • text
  • search
  • tel
  • url
  • email
  • password
  • date
  • month
  • week
  • time
  • datetime-local
  • number
  • range
  • color
  • checkbox
  • radio
  • file
  • submit
  • image
  • reset
  • button

value
floatcolordatetimestrarray

Value of the form control.

width
int

Horizontal dimension.

ins

An addition to the document.

html.ins(
cite:
str
,
datetime:
datetime
,
content
)->
content

cite
str

Link to the source of the quotation or more information about the edit.

datetime
datetime

Date and (optionally) time of the change.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

kbd

User input.

html.kbd(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

label

Caption for a form control.

html.label(
for:
str
,
content
)->
content

for
str

Associate the label with form control.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

legend

Caption for fieldset.

html.legend(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

li

List item.

html.li(
value:
int
,
content
)->
content

value
int

Ordinal value of the list item.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

Link metadata.

html.link(
as:
str
,
blocking:
strarray
,
color:
color
,
crossorigin:
str
,
disabled:
bool
,
fetchpriority:
autostr
,
href:
str
,
hreflang:
str
,
imagesizes:
array
,
imagesrcset:
array
,
integrity:
str
,
media:
str
,
referrerpolicy:
nonestr
,
rel:
strarray
,
sizes:
array
,
type:
str
)->
content

Potential destination for a preload request (for rel="preload" and rel="modulepreload").

Available string values
  • audio
  • audioworklet
  • document
  • embed
  • font
  • frame
  • iframe
  • image
  • json
  • manifest
  • object
  • paintworklet
  • report
  • script
  • serviceworker
  • sharedworker
  • style
  • track
  • video
  • webidentity
  • worker
  • xslt

Whether the element is potentially render-blocking.

Available string values
  • blocking

Color to use when customizing a site's icon (for rel="mask-icon").

How the element handles crossorigin requests.

Available string values
  • anonymous
  • use-credentials

Whether the link is disabled.

Sets the priority for fetches initiated by the element.

Available string values
  • high
  • low

Address of the hyperlink.

Language of the linked resource.

Image sizes for different page layouts (for rel="preload"). Expects an array of dictionaries with the keys condition (string) and size (length).

Images to use in different situations, e.g., high-resolution displays, small monitors, etc. (for rel="preload"). Expects an array of dictionaries with the keys src (string) and width (integer) or density (float).

Integrity metadata used in Subresource Integrity checks.

Applicable media.

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

Relationship between the document containing the hyperlink and the destination resource.

Available string values
  • alternate
  • canonical
  • author
  • bookmark
  • dns-prefetch
  • expect
  • external
  • help
  • icon
  • manifest
  • modulepreload
  • license
  • next
  • nofollow
  • noopener
  • noreferrer
  • opener
  • pingback
  • preconnect
  • prefetch
  • preload
  • prev
  • privacy-policy
  • search
  • stylesheet
  • tag
  • terms-of-service

Sizes of the icons (for rel="icon"). Expects an array of sizes. Each size is specified as an array of two integers (width and height).

Hint for the type of the referenced resource.

main

Container for the dominant contents of the document.

html.main(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

map

Image map.

html.map(
name:
str
,
content
)->
content

name
str

Name of image map to reference from the usemap attribute.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

mark

Highlight.

html.mark(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

menu

Menu of commands.

html.menu(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

meta

Text metadata.

html.meta(
charset:
str
,
content:
str
,
http-equiv:
str
,
media:
str
,
name:
str
)->
content

charset
str

Character encoding declaration.

Available string values
  • utf-8

content
str

Value of the element.

http-equiv
str

Pragma directive.

Available string values
  • content-type
  • default-style
  • refresh
  • x-ua-compatible
  • content-security-policy

media
str

Applicable media.

name
str

Metadata name.

meter

Gauge.

html.meter(
high:
float
,
low:
float
,
max:
float
,
min:
float
,
optimum:
float
,
value:
float
,
content
)->
content

high
float

Low limit of high range.

low
float

High limit of low range.

max
float

Upper bound of range.

min
float

Lower bound of range.

optimum
float

Optimum value in gauge.

value
float

Current value of the element.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

nav

Section with navigational links.

html.nav(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

noscript

Fallback content for script.

html.noscript(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

object

Image, child navigable, or plugin.

html.object(
data:
str
,
form:
str
,
height:
int
,
name:
str
,
type:
str
,
width:
int
,
content
)->
content

data
str

Address of the resource.

form
str

Associates the element with a form element.

height
int

Vertical dimension.

name
str

Name of content navigable.

Available string values
  • _blank
  • _self
  • _parent
  • _top

type
str

Type of embedded resource.

width
int

Horizontal dimension.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

ol

Ordered list.

html.ol(
reversed:
bool
,
start:
int
,
type:
str
,
content
)->
content

reversed
bool

Number the list backwards.

start
int

Starting value of the list.

type
str

Kind of list marker.

Available string values
  • 1
  • a
  • A
  • i
  • I

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

optgroup

Group of options in a list box.

html.optgroup(
disabled:
bool
,
label:
str
,
content
)->
content

disabled
bool

Whether the form control is disabled.

label
str

User-visible label.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

option

Option in a list box or combo box control.

html.option(
disabled:
bool
,
label:
str
,
selected:
bool
,
value:
str
,
content
)->
content

disabled
bool

Whether the form control is disabled.

label
str

User-visible label.

selected
bool

Whether the option is selected by default.

value
str

Value to be used for form submission.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

output

Calculated output value.

html.output(
for:
strarray
,
form:
str
,
name:
str
,
content
)->
content

for
strarray

Specifies controls from which the output was calculated.

form
str

Associates the element with a form element.

name
str

Name of the element to use for form submission and in the form.elements API.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

p

Paragraph.

html.p(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

picture

Image.

html.picture(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

pre

Block of preformatted text.

html.pre(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

progress

Progress bar.

html.progress(
max:
float
,
value:
float
,
content
)->
content

max
float

Upper bound of range.

value
float

Current value of the element.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

q

Quotation.

html.q(
cite:
str
,
content
)->
content

cite
str

Link to the source of the quotation or more information about the edit.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

rp

Parenthesis for ruby annotation text.

html.rp(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

rt

Ruby annotation text.

html.rt(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

ruby

Ruby annotation(s).

html.ruby(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

s

Inaccurate text.

html.s(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

samp

Computer output.

html.samp(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

script

Embedded script.

html.script(
async:
bool
,
blocking:
strarray
,
crossorigin:
str
,
defer:
bool
,
fetchpriority:
autostr
,
integrity:
str
,
nomodule:
bool
,
referrerpolicy:
nonestr
,
src:
str
,
type:
str
,
content
)->
content

async
bool

Execute script when available, without blocking while fetching.

blocking
strarray

Whether the element is potentially render-blocking.

Available string values
  • blocking

crossorigin
str

How the element handles crossorigin requests.

Available string values
  • anonymous
  • use-credentials

defer
bool

Defer script execution.

fetchpriority
autostr

Sets the priority for fetches initiated by the element.

Available string values
  • high
  • low

integrity
str

Integrity metadata used in Subresource Integrity checks.

nomodule
bool

Prevents execution in user agents that support module scripts.

referrerpolicy
nonestr

Referrer policy for fetches initiated by the element.

Available string values
  • no-referrer
  • no-referrer-when-downgrade
  • same-origin
  • origin
  • strict-origin
  • origin-when-cross-origin
  • strict-origin-when-cross-origin
  • unsafe-url

src
str

Address of the resource.

type
str

Type of script.

Available string values
  • module

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

Container for search controls.

html.search(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

section

Generic document or application section.

html.section(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

select

List box control.

html.select(
autocomplete:
strarray
,
disabled:
bool
,
form:
str
,
multiple:
bool
,
name:
str
,
required:
bool
,
size:
int
,
content
)->
content

autocomplete
strarray

Hint for form autofill feature.

Available string values
  • shipping
  • billing
  • name
  • honorific-prefix
  • given-name
  • additional-name
  • family-name
  • honorific-suffix
  • nickname
  • username
  • new-password
  • current-password
  • one-time-code
  • organization-title
  • organization
  • street-address
  • address-line1
  • address-line2
  • address-line3
  • address-level4
  • address-level3
  • address-level2
  • address-level1
  • country
  • country-name
  • postal-code
  • cc-name
  • cc-given-name
  • cc-additional-name
  • cc-family-name
  • cc-number
  • cc-exp
  • cc-exp-month
  • cc-exp-year
  • cc-csc
  • cc-type
  • transaction-currency
  • transaction-amount
  • language
  • bday
  • bday-day
  • bday-month
  • bday-year
  • sex
  • url
  • photo
  • home
  • work
  • mobile
  • fax
  • pager
  • tel
  • tel-country-code
  • tel-national
  • tel-area-code
  • tel-local
  • tel-local-prefix
  • tel-local-suffix
  • tel-extension
  • email
  • impp

disabled
bool

Whether the form control is disabled.

form
str

Associates the element with a form element.

multiple
bool

Whether to allow multiple values.

name
str

Name of the element to use for form submission and in the form.elements API.

required
bool

Whether the control is required for form submission.

size
int

Size of the control.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

slot

Shadow tree slot.

html.slot(
name:
str
,
content
)->
content

name
str

Name of shadow tree slot.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

small

Side comment.

html.small(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

source

Image source for img or media source for video or audio.

html.source(
height:
int
,
media:
str
,
sizes:
array
,
src:
str
,
srcset:
array
,
type:
str
,
width:
int
)->
content

height
int

Vertical dimension.

media
str

Applicable media.

sizes
array

Image sizes for different page layouts. Expects an array of dictionaries with the keys condition (string) and size (length).

src
str

Address of the resource.

srcset
array

Images to use in different situations, e.g., high-resolution displays, small monitors, etc. Expects an array of dictionaries with the keys src (string) and width (integer) or density (float).

type
str

Type of embedded resource.

width
int

Horizontal dimension.

span

Generic phrasing container.

html.span(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

strong

Importance.

html.strong(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

style

Embedded styling information.

html.style(
blocking:
strarray
,
media:
str
,
content
)->
content

blocking
strarray

Whether the element is potentially render-blocking.

Available string values
  • blocking

media
str

Applicable media.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

sub

Subscript.

html.sub(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

summary

Caption for details.

html.summary(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

sup

Superscript.

html.sup(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

table

Table.

html.table(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

tbody

Group of rows in a table.

html.tbody(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

td

Table cell.

html.td(
colspan:
int
,
headers:
strarray
,
rowspan:
int
,
content
)->
content

colspan
int

Number of columns that the cell is to span.

headers
strarray

The header cells for this cell.

rowspan
int

Number of rows that the cell is to span.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

template

Template.

html.template(
shadowrootclonable:
bool
,
shadowrootcustomelementregistry:
bool
,
shadowrootdelegatesfocus:
bool
,
shadowrootmode:
str
,
shadowrootserializable:
bool
,
content
)->
content

shadowrootclonable
bool

Sets clonable on a declarative shadow root.

shadowrootcustomelementregistry
bool

Enables declarative shadow roots to indicate they will use a custom element registry.

shadowrootdelegatesfocus
bool

Sets delegates focus on a declarative shadow root.

shadowrootmode
str

Enables streaming declarative shadow roots.

Available string values
  • open
  • closed

shadowrootserializable
bool

Sets serializable on a declarative shadow root.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

textarea

Multiline text controls.

html.textarea(
autocomplete:
strarray
,
cols:
int
,
dirname:
str
,
disabled:
bool
,
form:
str
,
maxlength:
int
,
minlength:
int
,
name:
str
,
placeholder:
str
,
readonly:
bool
,
required:
bool
,
rows:
int
,
wrap:
str
,
content
)->
content

autocomplete
strarray

Hint for form autofill feature.

Available string values
  • shipping
  • billing
  • name
  • honorific-prefix
  • given-name
  • additional-name
  • family-name
  • honorific-suffix
  • nickname
  • username
  • new-password
  • current-password
  • one-time-code
  • organization-title
  • organization
  • street-address
  • address-line1
  • address-line2
  • address-line3
  • address-level4
  • address-level3
  • address-level2
  • address-level1
  • country
  • country-name
  • postal-code
  • cc-name
  • cc-given-name
  • cc-additional-name
  • cc-family-name
  • cc-number
  • cc-exp
  • cc-exp-month
  • cc-exp-year
  • cc-csc
  • cc-type
  • transaction-currency
  • transaction-amount
  • language
  • bday
  • bday-day
  • bday-month
  • bday-year
  • sex
  • url
  • photo
  • home
  • work
  • mobile
  • fax
  • pager
  • tel
  • tel-country-code
  • tel-national
  • tel-area-code
  • tel-local
  • tel-local-prefix
  • tel-local-suffix
  • tel-extension
  • email
  • impp

cols
int

Maximum number of characters per line.

dirname
str

Name of form control to use for sending the element's directionality in form submission.

disabled
bool

Whether the form control is disabled.

form
str

Associates the element with a form element.

maxlength
int

Maximum length of value.

minlength
int

Minimum length of value.

name
str

Name of the element to use for form submission and in the form.elements API.

placeholder
str

User-visible label to be placed within the form control.

readonly
bool

Whether to allow the value to be edited by the user.

required
bool

Whether the control is required for form submission.

rows
int

Number of lines to show.

wrap
str

How the value of the form control is to be wrapped for form submission.

Available string values
  • soft
  • hard

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

tfoot

Group of footer rows in a table.

html.tfoot(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

th

Table header cell.

html.th(
abbr:
str
,
colspan:
int
,
headers:
strarray
,
rowspan:
int
,
scope:
str
,
content
)->
content

abbr
str

Alternative label to use for the header cell when referencing the cell in other contexts.

colspan
int

Number of columns that the cell is to span.

headers
strarray

The header cells for this cell.

rowspan
int

Number of rows that the cell is to span.

scope
str

Specifies which cells the header cell applies to.

Available string values
  • row
  • col
  • rowgroup
  • colgroup

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

thead

Group of heading rows in a table.

html.thead(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

time

Machine-readable equivalent of date- or time-related data.

html.time(
datetime:
datetimeduration
,
content
)->
content

datetime
datetimeduration

Machine-readable value.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

title

Document title.

html.title(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

tr

Table row.

html.tr(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

track

Timed text track.

html.track(
default:
bool
,
kind:
str
,
label:
str
,
src:
str
,
srclang:
str
)->
content

default
bool

Enable the track if no other text track is more suitable.

kind
str

The type of text track.

Available string values
  • subtitles
  • captions
  • descriptions
  • chapters
  • metadata

label
str

User-visible label.

src
str

Address of the resource.

srclang
str

Language of the text track.

u

Unarticulated annotation.

html.u(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

ul

List.

html.ul(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

var

Variable.

html.var(
content
)->
content

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

video

Video player.

html.video(
autoplay:
bool
,
controls:
bool
,
crossorigin:
str
,
height:
int
,
loop:
bool
,
muted:
bool
,
playsinline:
bool
,
poster:
str
,
preload:
noneautostr
,
src:
str
,
width:
int
,
content
)->
content

autoplay
bool

Hint that the media resource can be started automatically when the page is loaded.

controls
bool

Show user agent controls.

crossorigin
str

How the element handles crossorigin requests.

Available string values
  • anonymous
  • use-credentials

height
int

Vertical dimension.

loop
bool

Whether to loop the media resource.

muted
bool

Whether to mute the media resource by default.

playsinline
bool

Encourage the user agent to display video content within the element's playback area.

poster
str

Poster frame to show prior to video playback.

preload
noneautostr

Hints how much buffering the media resource will likely need.

Available string values
  • metadata

src
str

Address of the resource.

width
int

Horizontal dimension.

body
content
Positional
Positional
Positional parameters can be set by specifying them in order, omitting the parameter name.

The contents of the HTML element.

wbr

Line breaking opportunity.

html.wbr(
)->
content

Global Attributes

accesskey
strarray

Keyboard shortcut to activate or focus element. Expects a single-codepoint string or an array thereof.

aria-activedescendant
str

Identifies the currently active element when DOM focus is on a composite widget, textbox, group, or application.

aria-atomic
bool

Indicates whether assistive technologies will present all, or only parts of, the changed region based on the change notifications defined by the aria-relevant attribute.

aria-autocomplete
nonestr

Indicates whether inputting text could trigger display of one or more predictions of the user's intended value for an input and specifies how predictions would be presented if they are made.

Available string values
  • inline

    When a user is providing input, text suggesting one way to complete the provided input may be dynamically inserted after the caret.

  • list

    When a user is providing input, an element containing a collection of values that could complete the provided input may be displayed.

  • both

    When a user is providing input, an element containing a collection of values that could complete the provided input may be displayed. If displayed, one value in the collection is automatically selected, and the text needed to complete the automatically selected value appears after the caret in the input.

aria-busy
bool

Indicates an element is being modified and that assistive technologies MAY want to wait until the modifications are complete before exposing them to the user.

aria-checked
boolstr

Indicates the current "checked" state of checkboxes, radio buttons, and other widgets. See related aria-pressed and aria-selected.

Available string values
  • mixed

    An intermediate value between true and false.

aria-colcount
int

Defines the total number of columns in a table, grid, or treegrid. See related aria-colindex.

aria-colindex
int

Defines an element's column index or position with respect to the total number of columns within a table, grid, or treegrid. See related aria-colcount and aria-colspan.

aria-colspan
int

Defines the number of columns spanned by a cell or gridcell within a table, grid, or treegrid. See related aria-colindex and aria-rowspan.

aria-controls
strarray

Identifies the element (or elements) whose contents or presence are controlled by the current element. See related aria-owns.

aria-current
boolstr

Indicates the element that represents the current item within a container or set of related elements.

Available string values
  • page

    Represents the current page within a set of pages.

  • step

    Represents the current step within a process.

  • location

    Represents the current location within an environment or context.

  • date

    Represents the current date within a collection of dates.

  • time

    Represents the current time within a set of times.

aria-describedby
strarray

Identifies the element (or elements) that describes the object. See related aria-labelledby.

aria-details
str

Identifies the element that provides a detailed, extended description for the object. See related aria-describedby.

aria-disabled
bool

Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable. See related aria-hidden and aria-readonly.

aria-errormessage
str

Identifies the element that provides an error message for the object. See related aria-invalid and aria-describedby.

aria-expanded
nonebool

Indicates whether the element, or another grouping element it controls, is currently expanded or collapsed.

aria-flowto
strarray

Identifies the next element (or elements) in an alternate reading order of content which, at the user's discretion, allows assistive technology to override the general default of reading in document source order.

aria-haspopup
boolstr

Indicates the availability and type of interactive popup element, such as menu or dialog, that can be triggered by an element.

Available string values
  • menu

    Indicates the popup is a menu.

  • listbox

    Indicates the popup is a listbox.

  • tree

    Indicates the popup is a tree.

  • grid

    Indicates the popup is a grid.

  • dialog

    Indicates the popup is a dialog.

aria-hidden
nonebool

Indicates whether the element is exposed to an accessibility API. See related aria-disabled.

aria-invalid
boolstr

Indicates the entered value does not conform to the format expected by the application. See related aria-errormessage.

Available string values
  • grammar

    A grammatical error was detected.

  • spelling

    A spelling error was detected.

aria-keyshortcuts
str

Indicates keyboard shortcuts that an author has implemented to activate or give focus to an element.

aria-label
str

Defines a string value that labels the current element. See related aria-labelledby.

aria-labelledby
strarray

Identifies the element (or elements) that labels the current element. See related aria-describedby.

aria-level
int

Defines the hierarchical level of an element within a structure.

aria-live
str

Indicates that an element will be updated, and describes the types of updates the user agents, assistive technologies, and user can expect from the live region.

Available string values
  • assertive

    Indicates that updates to the region have the highest priority and should be presented the user immediately.

  • off

    Indicates that updates to the region should not be presented to the user unless the used is currently focused on that region.

  • polite

    Indicates that updates to the region should be presented at the next graceful opportunity, such as at the end of speaking the current sentence or when the user pauses typing.

aria-modal
bool

Indicates whether an element is modal when displayed.

aria-multiline
bool

Indicates whether a text box accepts multiple lines of input or only a single line.

aria-multiselectable
bool

Indicates that the user may select more than one item from the current selectable descendants.

aria-orientation
str

Indicates whether the element's orientation is horizontal, vertical, or unknown/ambiguous.

Available string values
  • horizontal

    The element is oriented horizontally.

  • undefined

    The element's orientation is unknown/ambiguous.

  • vertical

    The element is oriented vertically.

aria-owns
strarray

Identifies an element (or elements) in order to define a visual, functional, or contextual parent/child relationship between DOM elements where the DOM hierarchy cannot be used to represent the relationship. See related aria-controls.

aria-placeholder
str

Defines a short hint (a word or short phrase) intended to aid the user with data entry when the control has no value. A hint could be a sample value or a brief description of the expected format.

aria-posinset
int

Defines an element's number or position in the current set of listitems or treeitems. Not required if all elements in the set are present in the DOM. See related aria-setsize.

aria-pressed
boolstr

Indicates the current "pressed" state of toggle buttons. See related aria-checked and aria-selected.

Available string values
  • mixed

    An intermediate value between true and false.

aria-readonly
bool

Indicates that the element is not editable, but is otherwise operable. See related aria-disabled.

aria-relevant
strarray

Indicates what notifications the user agent will trigger when the accessibility tree within a live region is modified. See related aria-atomic.

Available string values
  • additions

    Element nodes are added to the accessibility tree within the live region.

  • additions text

    Equivalent to the combination of values, "additions text".

  • all

    Equivalent to the combination of all values, "additions removals text".

  • removals

    Text content, a text alternative, or an element node within the live region is removed from the accessibility tree.

  • text

    Text content or a text alternative is added to any descendant in the accessibility tree of the live region.

aria-required
bool

Indicates that user input is required on the element before a form may be submitted.

aria-roledescription
str

Defines a human-readable, author-localized description for the role of an element.

aria-rowcount
int

Defines the total number of rows in a table, grid, or treegrid. See related aria-rowindex.

aria-rowindex
int

Defines an element's row index or position with respect to the total number of rows within a table, grid, or treegrid. See related aria-rowcount and aria-rowspan.

aria-rowspan
int

Defines the number of rows spanned by a cell or gridcell within a table, grid, or treegrid. See related aria-rowindex and aria-colspan.

aria-selected
nonebool

Indicates the current "selected" state of various widgets. See related aria-checked and aria-pressed.

aria-setsize
int

Defines the number of items in the current set of listitems or treeitems. Not required if all elements in the set are present in the DOM. See related aria-posinset.

aria-sort
nonestr

Indicates if items in a table or grid are sorted in ascending or descending order.

Available string values
  • ascending

    Items are sorted in ascending order by this column.

  • descending

    Items are sorted in descending order by this column.

  • other

    A sort algorithm other than ascending or descending has been applied.

aria-valuemax
float

Defines the maximum allowed value for a range widget.

aria-valuemin
float

Defines the minimum allowed value for a range widget.

aria-valuenow
float

Defines the current value for a range widget. See related aria-valuetext.

aria-valuetext
str

Defines the human readable text alternative of aria-valuenow for a range widget.

autocapitalize
noneboolstr

Recommended autocapitalization behavior (for supported input methods).

Available string values
  • sentences
  • words
  • characters

autocorrect
bool

Recommended autocorrection behavior (for supported input methods).

autofocus
bool

Automatically focus the element when the page is loaded.

class
strarray

Classes to which the element belongs.

contenteditable
boolstr

Whether the element is editable.

Available string values
  • plaintext-only

dir
autodirection

The text directionality of the element.

draggable
bool

Whether the element is draggable.

enterkeyhint
str

Hint for selecting an enter key action.

Available string values
  • enter
  • done
  • go
  • next
  • previous
  • search
  • send

hidden
boolstr

Whether the element is relevant.

Available string values
  • until-found

id
str

The element's ID.

inert
bool

Whether the element is inert.

inputmode
nonestr

Hint for selecting an input modality.

Available string values
  • text
  • tel
  • email
  • url
  • numeric
  • decimal
  • search

is
str

Creates a customized built-in element.

itemid
str

Global identifier for a microdata item.

itemprop
strarray

Property names of a microdata item.

itemref
strarray

Referenced elements.

itemscope
bool

Introduces a microdata item.

itemtype
strarray

Item types of a microdata item.

lang
nonestr

Language of the element.

nonce
str

Cryptographic nonce used in Content Security Policy checks.

popover
autostr

Makes the element a popover element.

Available string values
  • manual

role
nonestr

An ARIA role.

Available string values
  • alert

    A type of live region with important, and usually time-sensitive, information. See related alertdialog and status.

  • alertdialog

    A type of dialog that contains an alert message, where initial focus goes to an element within the dialog. See related alert and dialog.

  • application

    A structure containing one or more focusable elements requiring user input, such as keyboard or gesture events, that do not follow a standard interaction pattern supported by a widget role.

  • article

    A section of a page that consists of a composition that forms an independent part of a document, page, or site.

  • banner

    A region that contains mostly site-oriented content, rather than page-specific content.

  • button

    An input that allows for user-triggered actions when clicked or pressed. See related link.

  • cell

    A cell in a tabular container. See related gridcell.

  • checkbox

    A checkable input that has three possible values: true, false, or mixed.

  • columnheader

    A cell containing header information for a column.

  • combobox

    A composite widget containing a single-line textbox and another element, such as a listbox or grid, that can dynamically pop up to help the user set the value of the textbox.

  • command

    A form of widget that performs an action but does not receive input data.

  • complementary

    A supporting section of the document, designed to be complementary to the main content at a similar level in the DOM hierarchy, but remains meaningful when separated from the main content.

  • composite

    A widget that may contain navigable descendants or owned children.

  • contentinfo

    A large perceivable region that contains information about the parent document.

  • definition

    A definition of a term or concept. See related term.

  • dialog

    A dialog is a descendant window of the primary window of a web application. For HTML pages, the primary application window is the entire web document, i.e., the body element.

  • directory

    A list of references to members of a group, such as a static table of contents.

  • document

    An element containing content that assistive technology users may want to browse in a reading mode.

  • feed

    A scrollable list of articles where scrolling may cause articles to be added to or removed from either end of the list.

  • figure

    A perceivable section of content that typically contains a graphical document, images, code snippets, or example text. The parts of a figure MAY be user-navigable.

  • form

    A landmark region that contains a collection of items and objects that, as a whole, combine to create a form. See related search.

  • grid

    A composite widget containing a collection of one or more rows with one or more cells where some or all cells in the grid are focusable by using methods of two-dimensional navigation, such as directional arrow keys.

  • gridcell

    A cell in a grid or treegrid.

  • group

    A set of user interface objects which are not intended to be included in a page summary or table of contents by assistive technologies.

  • heading

    A heading for a section of the page.

  • img

    A container for a collection of elements that form an image.

  • input

    A generic type of widget that allows user input.

  • landmark

    A perceivable section containing content that is relevant to a specific, author-specified purpose and sufficiently important that users will likely want to be able to navigate to the section easily and to have it listed in a summary of the page. Such a page summary could be generated dynamically by a user agent or assistive technology.

  • link

    An interactive reference to an internal or external resource that, when activated, causes the user agent to navigate to that resource. See related button.

  • list

    A section containing listitem elements. See related listbox.

  • listbox

    A widget that allows the user to select one or more items from a list of choices. See related combobox and list.

  • listitem

    A single item in a list or directory.

  • log

    A type of live region where new information is added in meaningful order and old information may disappear. See related marquee.

  • main

    The main content of a document.

  • marquee

    A type of live region where non-essential information changes frequently. See related log.

  • math

    Content that represents a mathematical expression.

  • menu

    A type of widget that offers a list of choices to the user.

  • menubar

    A presentation of menu that usually remains visible and is usually presented horizontally.

  • menuitem

    An option in a set of choices contained by a menu or menubar.

  • menuitemcheckbox

    A menuitem with a checkable state whose possible values are true, false, or mixed.

  • menuitemradio

    A checkable menuitem in a set of elements with the same role, only one of which can be checked at a time.

  • navigation

    A collection of navigational elements (usually links) for navigating the document or related documents.

  • note

    A section whose content is parenthetic or ancillary to the main content of the resource.

  • option

    A selectable item in a select list.

  • presentation

    An element whose implicit native role semantics will not be mapped to the accessibility API. See synonym none.

  • progressbar

    An element that displays the progress status for tasks that take a long time.

  • radio

    A checkable input in a group of elements with the same role, only one of which can be checked at a time.

  • radiogroup

    A group of radio buttons.

  • range

    An input representing a range of values that can be set by the user.

  • region

    A perceivable section containing content that is relevant to a specific, author-specified purpose and sufficiently important that users will likely want to be able to navigate to the section easily and to have it listed in a summary of the page. Such a page summary could be generated dynamically by a user agent or assistive technology.

  • roletype

    The base role from which all other roles in this taxonomy inherit.

  • row

    A row of cells in a tabular container.

  • rowgroup

    A structure containing one or more row elements in a tabular container.

  • rowheader

    A cell containing header information for a row in a grid.

  • scrollbar

    A graphical object that controls the scrolling of content within a viewing area, regardless of whether the content is fully displayed within the viewing area.

  • search

    A landmark region that contains a collection of items and objects that, as a whole, combine to create a search facility. See related form and searchbox.

  • searchbox

    A type of textbox intended for specifying search criteria. See related textbox and search.

  • section

    A renderable structural containment unit in a document or application.

  • sectionhead

    A structure that labels or summarizes the topic of its related section.

  • select

    A form widget that allows the user to make selections from a set of choices.

  • separator

    A divider that separates and distinguishes sections of content or groups of menuitems.

  • slider

    A user input where the user selects a value from within a given range.

  • spinbutton

    A form of range that expects the user to select from among discrete choices.

  • status

    A type of live region whose content is advisory information for the user but is not important enough to justify an alert, often but not necessarily presented as a status bar.

  • structure

    A document structural element.

  • switch

    A type of checkbox that represents on/off values, as opposed to checked/unchecked values. See related checkbox.

  • tab

    A grouping label providing a mechanism for selecting the tab content that is to be rendered to the user.

  • table

    A section containing data arranged in rows and columns. See related grid.

  • tablist

    A list of tab elements, which are references to tabpanel elements.

  • tabpanel

    A container for the resources associated with a tab, where each tab is contained in a tablist.

  • term

    A word or phrase with a corresponding definition. See related definition.

  • textbox

    A type of input that allows free-form text as its value.

  • timer

    A type of live region containing a numerical counter which indicates an amount of elapsed time from a start point, or the time remaining until an end point.

  • toolbar

    A collection of commonly used function buttons or controls represented in compact visual form.

  • tooltip

    A contextual popup that displays a description for an element.

  • tree

    A type of list that may contain sub-level nested groups that can be collapsed and expanded.

  • treegrid

    A grid whose rows can be expanded and collapsed in the same manner as for a tree.

  • treeitem

    An option item of a tree. This is an element within a tree that may be expanded or collapsed if it contains a sub-level group of tree item elements.

  • widget

    An interactive component of a graphical user interface (GUI).

  • window

    A browser or application window.

slot
str

The element's desired slot.

spellcheck
bool

Whether the element is to have its spelling and grammar checked.

style
str

Presentational and formatting instructions.

tabindex
int

Whether the element is focusable and sequentially focusable, and the relative order of the element for the purposes of sequential focus navigation.

title
str

Advisory information for the element.

translate
bool

Whether the element is to be translated when the page is localized.

writingsuggestions
bool

Whether the element can offer writing suggestions or not.

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