a

Hyperlink

globals; href; target; rel; media; hreflang; type

abbr

Abbreviation

globals

address

Contact information for a page or section

globals

area

Hyperlink or dead area on an image map

globals; alt; coords; shape; href; target; rel; media; hreflang; type

article

Self-contained syndicatable or reusable composition

globals

aside

Sidebar for tangentially related content

globals

audio

Audio player

globals; src; preload; autoplay; mediagroup; loop; controls

b

Represents a span of text to which attention is being drawn for utilitarian purposes without conveying any extra importance and with no implication of an alternate voice or mood.

globals

base

Base URL and default target browsing context for hyperlinks and forms

globals; href; target

block
quote

A section quoted from another source

globals; cite

body

Document body

globals; onafterprint; onbeforeprint; onbeforeunload; onblur; onerror; onfocus; onhashchange; onload; onmessage; onoffline; ononline; onpagehide; onpageshow; onpopstate; onredo; onresize; onscroll; onstorage; onundo; onunload

br

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

globals

button

Button control

globals; autofocus; disabled; form; formaction; formenctype; formmethod; formnovalidate; formtarget; name; type; value

canvas

Scriptable bitmap canvas

globals; width; height

caption

Table caption

globals

cite

Title of a work

globals

code

Computer code

globals

col

Table column

globals; span

colgroup

Group of columns in a table

globals; span

command

Menu command

globals; type; label; icon; disabled; checked; radiogroup

datalist

Container for options for combo box control

globals

dd

Content for corresponding dt element(s)

globals

del

A removal from the document

globals; cite; datetime

div

Generic flow container

globals

dl

Association list consisting of zero or more name-value groups

globals

dt

Legend for corresponding dd element(s)

globals

em

Stress emphasis

globals

embed

Plugin

globals; src; type; width; height; any*

fieldset

Group of form controls

globals; disabled; form; name

figcaption

Caption for figure

globals

figure

Figure with optional caption

globals

footer

Footer for a page or section

globals

form

User-submittable form

globals; accept-charset; action; autocomplete; enctype; method; name; novalidate; target

h1, h2, h3, h4, h5, h6

Section heading

globals

head

Container for document metadata

globals

header

Introductory or navigational aids for a page or section

globals

hgroup

heading group

globals

hr

Thematic break

globals

html

Root element

globals; manifest

i

Alternate voice

globals

iframe

Nested browsing context

globals; src; srcdoc; name; sandbox; seamless; width; height

img

Image

globals; alt; src; usemap; ismap; width; height

input

Form control

globals; accept; alt; autocomplete; autofocus; checked; dirname; disabled; form; formaction; formenctype; formmethod; formnovalidate; formtarget; height; list; max; maxlength; min; multiple; name; pattern; placeholder; readonly; required; size; src; step; type; value; width

ins

An addition to the document

globals; cite; datetime

label

Caption for a form control

globals; form; for

legend

Caption for fieldset

globals

li

List item

globals; value*

link

Link metadata

globals; href; rel; media; hreflang; type; sizes

map

Image map

globals; name

mark

Highlight

globals

menu

Menu of commands

globals; type; label

meta

Text metadata

globals; name; http-equiv; content; charset

meter

Gauge

globals; value; min; max; low; high; optimum; form

nav

Section with navigational links

globals

noscript

Fallback content for script

globals

object

Image, nested browsing context, or plugin

globals; data; type; name; usemap; form; width; height

ol

Ordered list

globals; reversed; start

optgroup

Group of options in a list box

globals; disabled; label

option

Option in a list box or combo box control

globals; disabled; label; selected; value

output

Calculated output value

globals; for; form; name

p

Paragraph

globals

param

Parameter for object

globals; name; value

pre

Block of preformatted text

globals

progress

Progress bar

globals; value; max; form

q

Quotation

globals; cite

script

Embedded script

globals; src; async; defer; type; charset

section

Generic document or application section

globals

select

List box control

globals; autofocus; disabled; form; multiple; name; required; size

small

Side comment

globals

source

Media source for video or audio

globals; src; type; media

span

Generic phrasing container

globals

strong

Importance

globals

style

Embedded styling information

globals; media; type; scoped

sub

Subscript

globals

summary

Caption for details

globals

sup

Superscript

globals

table

Table

globals; border

tbody

Group of rows in a table

globals

td

Table cell

globals; colspan; rowspan; headers

textarea

Multiline text field

globals; autofocus; cols; disabled; form; maxlength; name; placeholder; readonly; required; rows; wrap

tfoot

Group of footer rows in a table

globals

th

Table header cell

globals; colspan; rowspan; headers; scope

thead

Group of heading rows in a table

globals

time

Date and/or time

globals; datetime; pubdate

title

Document title

globals

tr

Table row

globals

track

Timed text track

globals; default; kind; label; src; srclang

u

Keywords

globals

ul

List

globals

var

Variable

globals

video

Video player

globals; src; poster; preload; autoplay; mediagroup; loop; controls; width; height

wbr

Line breaking opportunity

globals

Metadata content

base; command; link; meta; noscript; script; style; title

Flow content

a; abbr; address; article; aside; audio; b; bdi; bdo; blockquote; br; button; canvas; cite; code; command; datalist; del; details; dfn; div; dl; em; embed; fieldset; figure; footer; form; h1; h2; h3; h4; h5; h6; header; hgroup; hr; i; iframe; img; input; ins; kbd; keygen; label; map; mark; math; menu; meter; nav; noscript; object; ol; output; p; pre; progress; q; ruby; s; samp; script; section; select; small; span; strong; sub; sup; svg; table; textarea; time; u; ul; var; video; wbr; Text

Sectioning content

article; aside; nav; section

Heading content

h1; h2; h3; h4; h5; h6; hgroup

Phrasing content

abbr; audio; b; bdi; bdo; br; button; canvas; cite; code; command; datalist; dfn; em; embed; i; iframe; img; input; kbd; keygen; label; mark; math; meter; noscript; object; output; progress; q; ruby; s; samp; script; select; small; span; strong; sub; sup; svg; textarea; time; u; var; video; wbr; Text

Embedded content

audio canvas embed iframe img math object svg video

Interactive content

a; button; details; embed; iframe; keygen; label; select; textarea;

Sectioning roots

blockquote; body; details; fieldset; figure; td

Form-associated elements

button; fieldset; input; keygen; label; meter; object; output; progress; select; textarea

Listed elements

button; fieldset; input; keygen; object; output; select; textarea

Labelable elements

button; input; keygen; meter; output; progress; select; textarea

Submittable elements

button; input; keygen; object; select; textarea

Resettable elements

input; keygen; output; select; textarea

formatBlock candidates

section; nav; article; aside; h1; h2; h3; h4; h5; h6; hgroup; header; footer; address; p; pre; blockquote; div

accept

input

Hint for expected file type in file upload controls

Set of comma-separated tokens* consisting of valid MIME types with no parameters or audio/*, video/*, or image/*

accept-charset

form

Character encodings to use for form submission

Ordered set of unique space-separated tokens, ASCII case-insensitive, consisting of preferred MIME names of ASCII-compatible character encodings*

accesskey

HTML elements

Keyboard shortcut to activate or focus element

Ordered set of unique space-separated tokens, case-sensitive, consisting of one Unicode code point in length

action

form

URL to use for form submission

Valid URL potentially surrounded by spaces

alt

area; img; input

Replacement text for use when images are not available

Text*

async

script

Execute script asynchronously

Boolean attribute

autocomplete

form; input

Prevent the user agent from providing autocompletions for the form control(s)

"on"; "off"

autofocus

button; input; keygen; select; textarea

Automatically focus the form control when the page is loaded

Boolean attribute

autoplay

audio; video

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

Boolean attribute

border

border

Explicit indication that the table element is not being used for layout purposes

The empty string, or "1"

challenge

keygen

String to package with the generated and signed public key

Text

charset

meta

Character encoding declaration

Preferred MIME name of an encoding*

charset

script

Character encoding of the external script resource

Preferred MIME name of an encoding*

checked

command; input

Whether the command or control is checked

Boolean attribute

cite

blockquote; del; ins; q

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

Valid URL potentially surrounded by spaces

class

HTML elements

Classes to which the element belongs

Set of space-separated tokens

cols

textarea

Maximum number of characters per line

Valid non-negative integer greater than zero

colspan

td; th

Number of columns that the cell is to span

Valid non-negative integer greater than zero

content

meta

Value of the element

Text*

contentedit
able

HTML elements

Whether the element is editable

"true"; "false"

contextmenu

HTML elements

The element’s context menu

ID*

controls

audio; video

Show user agent controls

Boolean attribute

coords

area

Coordinates for the shape to be created in an image map

Valid list of integers*

data

object

Address of the resource

Valid non-empty URL potentially surrounded by spaces

datetime

del; ins

Date and (optionally) time of the change

Valid date string with optional time

datetime

time

Value of the element

Valid date or time string*

default

track

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

Boolean attribute

defer

script

Defer script execution

Boolean attribute

dir

HTML elements

The text directionality of the element

"ltr"; "rtl"

dirname

input; textarea

Name of form field to use for sending the element’s directionality in form submission

Text*

disabled

button; command; fieldset; input; keygen; optgroup; option; select; textarea

Whether the form control is disabled

Boolean attribute

draggable

HTML elements

Whether the element is draggable

"true"; "false"

dropzone

HTML elements

Accepted item types for drag-and-drop

Unordered set of unique space-separated tokens, ASCII case-insensitive, consisting of accepted types and drag feedback*

enctype

form

Form data set encoding type to use for form submission

"application/x-www-form-urlencoded"; "multipart/form-data"; "text/plain"

for

label

Associate the label with form control

ID*

for

output

Specifies controls from which the output was calculated

Unordered set of unique space-separated tokens, case-sensitive, consisting of IDs*

form

button; fieldset; input; keygen; label; meter; object; output; progress; select; textarea

Associates the control with a form element

ID*

formaction

button; input

URL to use for form submission

Valid URL potentially surrounded by spaces

formenctype

button; input

Form data set encoding type to use for form submission

"application/x-www-form-urlencoded"; "multipart/form-data"; "text/plain"

formmethod

button; input

HTTP method to use for form submission

"GET"; "POST"

formnovali
date

button; input

Bypass form control validation for form submission

Boolean attribute

formtarget

button; input

Browsing context for form submission

Valid browsing context name or keyword

headers

td; th

The header cells for this cell

Unordered set of unique space-separated tokens, case-sensitive, consisting of IDs*

height

canvas; embed; iframe; img; input; object; video

Vertical dimension

Valid non-negative integer

hidden

HTML elements

Whether the element is relevant

Boolean attribute

high

meter

Low limit of high range

Valid floating point number*

href

a; area

Address of the hyperlink

Valid URL potentially surrounded by spaces

href

link

Address of the hyperlink

Valid non-empty URL potentially surrounded by spaces

href

base

Document base URL

Valid URL potentially surrounded by spaces

hreflang

a; area; link

Language of the linked resource

Valid BCP 47 language tag

http-equiv

meta

Pragma directive

Text*

icon

command

Icon for the command

Valid non-empty URL potentially surrounded by spaces

id

HTML elements

The element’s ID

Text*

ismap

img

Whether the image is a server-side image map

Boolean attribute

keytype

keygen

The type of cryptographic key to generate

Text*

kind

track

The type of text track

"subtitles"; "captions"; "descriptions"; "chapters"; "metadata"

label

command; menu; optgroup; option; track

User-visible label

Text

lang

HTML elements

Language of the element

Valid BCP 47 language tag or the empty string

list

input

List of autocomplete options

ID*

loop

audio; video

Whether to loop the media resource

Boolean attribute

low

meter

High limit of low range

Valid floating point number*

manifest

html

Application cache manifest

Valid non-empty URL potentially surrounded by spaces

max

input

Maximum value

varies*

max

meter; progress

Upper bound of range

Valid floating point number*

maxlength

input; textarea

Maximum length of value

Valid non-negative integer

media

a; area; link; source; style

Applicable media

Valid media query

mediagroup

audio; video

Groups media elements together with an implicit MediaController

Text

method

form

HTTP method to use for form submission

"GET"; "POST"

min

input

Minimum value

varies*

min

meter

Lower bound of range

Valid floating point number*

multiple

input; select

Whether to allow multiple values

Boolean attribute

name

button; fieldset; input; keygen; output; select; textarea

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

Text*

name

form

Name of form to use in the document.forms API

Text*

name

iframe; object

Name of nested browsing context

Valid browsing context name or keyword

name

map

Name of image map to reference from the usemap attribute

Text*

name

meta

Metadata name

Text*

name

param

Name of parameter

Text

novalidate

form

Bypass form control validation for form submission

Boolean attribute

open

details

Whether the details are visible

Boolean attribute

optimum

meter

Optimum value in gauge

Valid floating point number*

pattern

input

Pattern to be matched by the form control’s value

Regular expression matching the JavaScript Pattern production

placeholder

input; textarea

User-visible label to be placed within the form control

Text*

poster

video

Poster frame to show prior to video playback

Valid non-empty URL potentially surrounded by spaces

preload

audio; video

Hints how much buffering the media resource will likely need

"none"; "metadata"; "auto"

pubdate

time

Whether the element’s value represents a publication time for the nearest article or body

Boolean attribute

radiogroup

command

Name of group of commands to treat as a radio button group

Text

readonly

input; textarea

Whether to allow the value to be edited by the user

Boolean attribute

rel

a; area; link

Relationship between the document containing the hyperlink and the destination resource

Set of space-separated tokens*

required

input; select; textarea

Whether the control is required for form submission

Boolean attribute

reversed

ol

Number the list backwards

Boolean attribute

rows

textarea

Number of lines to show

Valid non-negative integer greater than zero

rowspan

td; th

Number of rows that the cell is to span

Valid non-negative integer

sandbox

iframe

Security rules for nested content

Unordered set of unique space-separated tokens, ASCII case-insensitive, consisting of "allow-same-origin", "allow-forms", and "allow-scripts"

spellcheck

HTML elements

Whether the element is to have its spelling and grammar checked

"true"; "false"

scope

th

Specifies which cells the header cell applies to

"row"; "col"; "rowgroup"; "colgroup"

scoped

style

Whether the styles apply to the entire document or just the parent subtree

Boolean attribute

seamless

iframe

Whether to apply the document’s styles to the nested content

Boolean attribute

selected

option

Whether the option is selected by default

Boolean attribute

shape

area

The kind of shape to be created in an image map

"circle"; "default"; "poly"; "rect"

size

input; select

Size of the control

Valid non-negative integer greater than zero

sizes

link

Sizes of the icons (for rel="icon")

Unordered set of unique space-separated tokens, ASCII case-insensitive, consisting of sizes*

span

col; colgroup

Number of columns spanned by the element

Valid non-negative integer greater than zero

src

audio; embed; iframe; img; input; script; source; track; video

Address of the resource

Valid non-empty URL potentially surrounded by spaces

srcdoc

iframe

A document to render in the iframe

The source of an iframe srcdoc document*

srclang

track

Language of the text track

Valid BCP 47 language tag

start

ol

Ordinal value of the first item

Valid integer

step

input

Granularity to be matched by the form control’s value

Valid floating point number greater than zero, or "any"

style

HTML elements

Presentational and formatting instructions

CSS declarations*

tabindex

HTML elements

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

Valid integer

target

a; area

Browsing context for hyperlink navigation

Valid browsing context name or keyword

target

base

Default browsing context for hyperlink navigation and form submission

Valid browsing context name or keyword

target

form

Browsing context for form submission

Valid browsing context name or keyword

title

HTML elements

Advisory information for the element

Text

title

abbr; dfn

Full term or expansion of abbreviation

Text

title

command

Hint describing the command

Text

title

link

Title of the link

Text

title

link; style

Alternative style sheet set name

Text

type

a; area; link

Hint for the type of the referenced resource

Valid MIME type

type

button

Type of button

"submit"; "reset"; "button"

type

button; input

Type of form control

input type keyword

type

command

Type of command

"command"; "checkbox"; "radio"

type

embed; object; script; source; style

Type of embedded resource

Valid MIME type

type

menu

Type of menu

"context"; "toolbar"

usemap

img; object

Name of image map to use

Valid hash-name reference*

value

button; option

Value to be used for form submission

Text

value

input

Value of the form control

varies*

value

li

Ordinal value of the list item

Valid integer

value

meter; progress

Current value of the element

Valid floating point number

value

param

Value of parameter

Text

width

canvas; embed; iframe; img; input; object; video

Horizontal dimension

Valid non-negative integer

wrap

textarea

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

"soft"; "hard"

onabort

HTML elements

abort event handler

Event handler content attribute

onafterprint

body

afterprint event handler for Window object

Event handler content attribute

onbeforeprint

body

beforeprint event handler for Window object

Event handler content attribute

onbeforeunload

body

beforeunload event handler for Window object

Event handler content attribute

onblur

body

blur event handler for Window object

Event handler content attribute

onblur

HTML elements

blur event handler

Event handler content attribute

oncanplay

HTML elements

canplay event handler

Event handler content attribute

oncanplaythrough

HTML elements

canplaythrough event handler

Event handler content attribute

onchange

HTML elements

change event handler

Event handler content attribute

onclick

HTML elements

click event handler

Event handler content attribute

oncontextmenu

HTML elements

contextmenu event handler

Event handler content attribute

oncuechange

HTML elements

cuechange event handler

Event handler content attribute

ondblclick

HTML elements

dblclick event handler

Event handler content attribute

ondrag

HTML elements

drag event handler

Event handler content attribute

ondragend

HTML elements

dragend event handler

Event handler content attribute

ondragenter

HTML elements

dragenter event handler

Event handler content attribute

ondragleave

HTML elements

dragleave event handler

Event handler content attribute

ondragover

HTML elements

dragover event handler

Event handler content attribute

ondragstart

HTML elements

dragstart event handler

Event handler content attribute

ondrop

HTML elements

drop event handler

Event handler content attribute

ondurationchange

HTML elements

durationchange event handler

Event handler content attribute

onemptied

HTML elements

emptied event handler

Event handler content attribute

onended

HTML elements

ended event handler

Event handler content attribute

onerror

body

error event handler for Window object, and handler for script error notifications

Event handler content attribute

onerror

HTML elements

error event handler

Event handler content attribute

onfocus

body

focus event handler for Window object

Event handler content attribute

onfocus

HTML elements

focus event handler

Event handler content attribute

onhashchange

body

hashchange event handler for Window object

Event handler content attribute

oninput

HTML elements

input event handler

Event handler content attribute

oninvalid

HTML elements

invalid event handler

Event handler content attribute

onkeydown

HTML elements

keydown event handler

Event handler content attribute

onkeypress

HTML elements

keypress event handler

Event handler content attribute

onkeyup

HTML elements

keyup event handler

Event handler content attribute

onload

body

load event handler for Window object

Event handler content attribute

onload

HTML elements

load event handler

Event handler content attribute

onloadeddata

HTML elements

loadeddata event handler

Event handler content attribute

onloadedmetadata

HTML elements

loadedmetadata event handler

Event handler content attribute

onloadstart

HTML elements

loadstart event handler

Event handler content attribute

onmessage

body

message event handler for Window object

Event handler content attribute

onmousedown

HTML elements

mousedown event handler

Event handler content attribute

onmousemove

HTML elements

mousemove event handler

Event handler content attribute

onmouseout

HTML elements

mouseout event handler

Event handler content attribute

onmouseover

HTML elements

mouseover event handler

Event handler content attribute

onmouseup

HTML elements

mouseup event handler

Event handler content attribute

onmousewheel

HTML elements

mousewheel event handler

Event handler content attribute

onoffline

body

offline event handler for Window object

Event handler content attribute

ononline

body

online event handler for Window object

Event handler content attribute

onpagehide

body

pagehide event handler for Window object

Event handler content attribute

onpageshow

body

pageshow event handler for Window object

Event handler content attribute

onpause

HTML elements

pause event handler

Event handler content attribute

onplay

HTML elements

play event handler

Event handler content attribute

onplaying

HTML elements

playing event handler

Event handler content attribute

onpopstate

body

popstate event handler for Window object

Event handler content attribute

onprogress

HTML elements

progress event handler

Event handler content attribute

onratechange

HTML elements

ratechange event handler

Event handler content attribute

onreadystatechange

HTML elements

readystatechange event handler

Event handler content attribute

onredo

body

redo event handler for Window object

Event handler content attribute

onreset

HTML elements

reset event handler

Event handler content attribute

onresize

body

resize event handler for Window object

Event handler content attribute

onscroll

body

scroll event handler for Window object

Event handler content attribute

onscroll

HTML elements

scroll event handler

Event handler content attribute

onseeked

HTML elements

seeked event handler

Event handler content attribute

onseeking

HTML elements

seeking event handler

Event handler content attribute

onselect

HTML elements

select event handler

Event handler content attribute

onshow

HTML elements

show event handler

Event handler content attribute

onstalled

HTML elements

stalled event handler

Event handler content attribute

onstorage

body

storage event handler for Window object

Event handler content attribute

onsubmit

HTML elements

submit event handler

Event handler content attribute

onsuspend

HTML elements

suspend event handler

Event handler content attribute

ontimeupdate

HTML elements

timeupdate event handler

Event handler content attribute

onundo

body

undo event handler for Window object

Event handler content attribute

onunload

body

unload event handler for Window object

Event handler content attribute

onvolumechange

HTML elements

volumechange event handler

Event handler content attribute

onwaiting

HTML elements

waiting event handler

Event handler content attribute

DOMContentLoaded

Event

Fired at the Document once it and its scripts have loaded, without waiting for other subresources

abort

Event

Fired at the Window when the download was aborted by the user

afterprint

Event

Fired at the Window after printing

beforeprint

Event

Fired at the Window before printing

beforeunload

BeforeUnloadEvent

Fired at the Window when the page is about to be unloaded, in case the page would like to show a warning prompt

blur

Event

Fired at nodes losing focus

change

Event

Fired at controls when the user commits a value change

click

Event

Fired at an element before its activation behavior is run

contextmenu

Event

Fired at elements when the user requests their context menu

error

Event

Fired at elements when network and script errors occur

focus

Event

Fired at nodes gaining focus

hashchange

HashChangeEvent

Fired at the Window when the fragment identifier part of the document’s current address changes

input

Event

Fired at controls when the user changes the value

invalid

Event

Fired at controls during form validation if they do not satisfy their constraints

load

Event

Fired at the Window when the document has finished loading; fired at an element containing a resource (e.g. img, embed) when its resource has finished loading

message

MessageEvent

Fired at an object when the object receives a message

offline

Event

Fired at the Window when the network connections fails

online

Event

Fired at the Window when the network connections returns

pagehide

PageTransitionEvent

Fired at the Window when the page’s entry in the session history stops being the current entry

pageshow

PageTransitionEvent

Fired at the Window when the page’s entry in the session history becomes the current entry

popstate

PopStateEvent

Fired at the Window when the user navigates the session history

readystatechange

Event

Fired at the Document when it finishes parsing and again when all its subresources have finished loading

reset

Event

Fired at a form element when it is reset

show

Event

Fired at a menu element when it is shown as a context menu

submit

Event

Fired at a form element when it is submitted

unload

Event

Fired at the Window object when the page is going away

loadstart

Event

The user agent begins looking for media data, as part of the resource selection algorithm.

networkState equals NETWORK_LOADING

progress

Event

The user agent is fetching media data.

networkState equals NETWORK_LOADING

suspend

Event

The user agent is intentionally not currently fetching media data, but does not have the entire media resource downloaded.

networkState equals NETWORK_IDLE

abort

Event

The user agent stops fetching the media data before it is completely downloaded, but not due to an error.

error is an object with the code MEDIA_ERR_ABORTED. networkState equals either NETWORK_EMPTY or NETWORK_IDLE, depending on when the download was aborted.

error

Event

An error occurs while fetching the media data.

error is an object with the code MEDIA_ERR_NETWORK or higher. networkState equals either NETWORK_EMPTY or NETWORK_IDLE, depending on when the download was aborted.

emptied

Event

A media element whose networkState was previously not in the NETWORK_EMPTY state has just switched to that state (either because of a fatal error during load that’s about to be reported, or because the load() method was invoked while the resource selection algorithm was already running).

networkState is NETWORK_EMPTY; all the IDL attributes are in their initial states.

stalled

Event

The user agent is trying to fetch media data, but data is unexpectedly not forthcoming.

networkState is NETWORK_LOADING.

loadedmetadata

Event

The user agent has just determined the duration and dimensions of the media resource and the text tracks are ready.

readyState is newly equal to HAVE_METADATA or greater for the first time.

loadeddata

Event

The user agent can render the media data at the current playback position for the first time.

readyState newly increased to HAVE_CURRENT_DATA or greater for the first time.

canplay

Event

The user agent can resume playback of the media data, but estimates that if playback were to be started now, the media resource could not be rendered at the current playback rate up to its end without having to stop for further buffering of content.

readyState newly increased to HAVE_FUTURE_DATA or greater.

canplaythrough

Event

The user agent estimates that if playback were to be started now, the media resource could be rendered at the current playback rate all the way to its end without having to stop for further buffering.

readyState is newly equal to HAVE_ENOUGH_DATA.

playing

Event

Playback is ready to start after having been paused or delayed due to lack of media data.

readyState is newly equal to or greater than HAVE_FUTURE_DATA and paused is false, or paused is newly false and readyState is equal to or greater than HAVE_FUTURE_DATA. Even if this event fires, the element might still not be potentially playing, e.g. if the element is blocked on its media controller (e.g. because the current media controller is paused, or another slaved media element is stalled somehow, or because the media resource has no data corresponding to the media controller position), or the element is paused for user interaction.

waiting

Event

Playback has stopped because the next frame is not available, but the user agent expects that frame to become available in due course.

readyState is equal to or less than HAVE_CURRENT_DATA, and paused is false. Either seeking is true, or the current playback position is not contained in any of the ranges in buffered. It is possible for playback to stop for other reasons without paused being false, but those reasons do not fire this event (and when those situations resolve, a separate playing event is not fired either): e.g. the element is newly blocked on its media controller, or playback ended, or playback stopped due to errors, or the element has paused for user interaction.

seeking

Event

The seeking IDL attribute changed to true and the seek operation is taking long enough that the user agent has time to fire the event.

seeked

Event

The seeking IDL attribute changed to false.

ended

Event

Playback has stopped because the end of the media resource was reached.

currentTime equals the end of the media resource; ended is true.

durationchange

Event

The duration attribute has just been updated.

timeupdate

Event

The current playback position changed as part of normal playback or in an especially interesting way, for example discontinuously.

play

Event

The element is no longer paused. Fired after the play() method has returned, or when the autoplay attribute has caused playback to begin.

paused is newly false.

pause

Event

The element has been paused. Fired after the pause() method has returned.

paused is newly true.

ratechange

Event

Either the
defaultPlayback
Rate or the playbackRate attribute has just been updated.

volumechange

Event

Either the volume attribute or the muted attribute has changed. Fired after the relevant attribute’s setter has returned.