overwritten

This specification has been produced by the Open IPTV Forum (OIPF).

This specification provides multiple options for some features. The Open IPTV Forum Profiles specification complements the Release 2 specifications by defining the Open IPTV Forum implementation and deployment profiles.

The Open IPTV Forum Release 2 Solution specification consists of ten Volumes:

Volume 1 — Overview
Volume 2 — Media Formats
Volume 2a — HTTP Adaptive Streaming
Volume 3 — Content Metadata
Volume 4 — Protocols
Volume 4a — Examples of IPTV Protocol Sequences
Volume 5 — Declarative Application Environment
Volume 5a — Web Standards TV Profile (the present document)
Volume 6 — Procedural Application Environment
Volume 7 — Authentication, Content Protection and Service Protection

Term	Definition
Terminal	a device running an interactive user-agent (browser) conformant to this specification. This is equivalent to the the OITF block as defined in [[.OIPF_ARCH2]].
Application	an interactive software authored using the set of languages defined by this profile and conformant with this profile.
Authoring Tool	a software program used to edit applications.
MB	2²⁰ bytes.

Abbreviation	Definition
API	Application Programming Interface
CSS	Cascading Style Sheets
DOM	Document Object Model
WOFF	Web Open Font Format

Virtual Keycode Constants	Equivalent key value (in DOM3)
VK_UNDEFINED	'Unidentified'
VK_CANCEL	'Cancel'
VK_BACK_SPACE	'Backspace'
VK_TAB	'Tab'
VK_CLEAR	'Clear'
VK_ENTER	'Enter'
VK_SHIFT	'Shift'
VK_CONTROL	'Control'
VK_ALT	'Alt'
VK_PAUSE	'Pause'
VK_CAPS_LOCK	'CapsLock'
VK_KANA	'KanaMode'
VK_FINAL	'FinalMode'
VK_KANJI	'KanjiMode'
VK_ESCAPE	'Esc'
VK_CONVERT	'Convert'
VK_NONCONVERT	'Nonconvert'
VK_ACCEPT	'Accept'
VK_MODECHANGE	'ModeChange'
VK_SPACE	space character, fix
VK_PAGE_UP	'PageUp'
VK_PAGE_DOWN	'PageDown'
VK_END	'End'
VK_HOME	'Home'
VK_LEFT	'Left'
VK_UP	'Up'
VK_RIGHT	'Right'
VK_DOWN	'Down'
VK_COMMA	','
VK_PERIOD	'.'
VK_SLASH	'/'
VK_0	'0'
VK_1	'1'
VK_2	'2'
VK_3	'3'
VK_4	'4'
VK_5	'5'
VK_6	'6'
VK_7	'7'
VK_8	'8'
VK_9	'9'
VK_SEMICOLON	';'
VK_EQUALS	'Equals'
VK_A	'A'
VK_B	'B'
VK_C	'C'
VK_D	'D'
VK_E	'E'
VK_F	'F'
VK_G	'G'
VK_H	'H'
VK_I	'I'
VK_J	'J'
VK_K	'K'
VK_L	'L'
VK_M	'M'
VK_N	'N'
VK_O	'O'
VK_P	'P'
VK_Q	'Q'
VK_R	'R'
VK_S	'S'
VK_T	'T'
VK_U	'U'
VK_V	'V'
VK_W	'W'
VK_X	'X'
VK_Y	'Y'
VK_Z	'Z'
VK_OPEN_BRACKET	'['
VK_BACK_SLASH	'\'
VK_CLOSE_BRACKET	']'
VK_NUMPAD0	see NOTE below
VK_NUMPAD1	see NOTE below
VK_NUMPAD2	see NOTE below
VK_NUMPAD3	see NOTE below
VK_NUMPAD4	see NOTE below
VK_NUMPAD5	see NOTE below
VK_NUMPAD6	see NOTE below
VK_NUMPAD7	see NOTE below
VK_NUMPAD8	see NOTE below
VK_NUMPAD9	see NOTE below
VK_MULTIPLY	'Multiply'
VK_ADD	'Add'
VK_SEPARATER	'Separator'
VK_SUBTRACT	'Subtract'
VK_DECIMAL	'Decimal'
VK_DIVIDE	'Divide'
VK_F1	'F1'
VK_F2	'F2'
VK_F3	'F3'
VK_F4	'F4'
VK_F5	'F5'
VK_F6	'F6'
VK_F7	'F7'
VK_F8	'F8'
VK_F9	'F9'
VK_F10	'F10'
VK_F11	'F11'
VK_F12	'F12'
VK_DELETE	'Del'
VK_NUM_LOCK	'NumLock'
VK_SCROLL_LOCK	'Scroll'
VK_PRINTSCREEN	'PrintScreen'
VK_INSERT	'Insert'
VK_HELP	'Help'
VK_META	'Meta'
VK_BACK_QUOTE	'`'
VK_QUOTE	'''
VK_RED	'Red'
VK_GREEN	'Green'
VK_YELLOW	'Yellow'
VK_BLUE	'Blue'
VK_GREY	'Grey'
VK_BROWN	'Brown'
VK_POWER	'Power'
VK_DIMMER	'Dimmer'
VK_WINK	'Wink'
VK_REWIND	'MediaRewind'
VK_STOP	'MediaStop'
VK_EJECT_TOGGLE	'Eject'
VK_PLAY	'MediaPlay'
VK_RECORD	'MediaRecord'
VK_FAST_FWD	'FastFwd'
VK_PLAY_SPEED_UP	'PlaySpeedUp'
VK_PLAY_SPEED_DOWN	'PlaySpeedDown'
VK_PLAY_SPEED_RESET	'PlaySpeedReset'
VK_RECORD_SPEED_NEXT	'RecordSpeedNext'
VK_GO_TO_START	'MediaTrackStart'
VK_GO_TO_END	'MediaTrackEnd'
VK_TRACK_PREV	'MediaPreviousTrack'
VK_TRACK_NEXT	'MediaNextTrack'
VK_RANDOM_TOGGLE	'RandomToggle'
VK_CHANNEL_UP	'ChannelUp'
VK_CHANNEL_DOWN	'ChannelDown'
VK_STORE_FAVORITE_0	'StoreFavorite0'
VK_STORE_FAVORITE_1	'StoreFavorite1'
VK_STORE_FAVORITE_2	'StoreFavorite2'
VK_STORE_FAVORITE_3	'StoreFavorite4'
VK_RECALL_FAVORITE_0	'RecallFavorite0'
VK_RECALL_FAVORITE_1	'RecallFavorite1'
VK_RECALL_FAVORITE_2	'RecallFavorite2'
VK_RECALL_FAVORITE_3	'RecallFavorite3'
VK_CLEAR_FAVORITE_0	'ClearFavorite0'
VK_CLEAR_FAVORITE_1	'ClearFavorite1'
VK_CLEAR_FAVORITE_2	'ClearFavorite2'
VK_CLEAR_FAVORITE_3	'ClearFavorite3'
VK_SCAN_CHANNELS_TOGGLE	'ScanChannelsToggle'
VK_PINP_TOGGLE	'PinPToggle'
VK_SPLIT_SCREEN_TOGGLE	'SplitScreenToggle'
VK_DISPLAY_SWAP	'DisplaySwap'
VK_SCREEN_MODE_NEXT	'ScreenModeNext'
VK_VIDEO_MODE_NEXT	'VideoModeNext'
VK_VOLUME_UP	'VolumeUp'
VK_VOLUME_DOWN	'VolumeDown'
VK_MUTE	'VolumeMute'
VK_SURROUND_MODE_NEXT	'AudioSurroundModeNext'
VK_BALANCE_RIGHT	'AudioBalanceRight'
VK_BALANCE_LEFT	'AudioBalanceLeft'
VK_FADER_FRONT	'AudioFaderFront'
VK_FADER_REAR	'AudioFaderRear'
VK_BASS_BOOST_UP	'AudioBassBoostUp'
VK_BASS_BOOST_DOWN	'AudioBassBoostDown'
VK_INFO	'Info'
VK_GUIDE	'Guide'
VK_TELETEXT	'Teletext'
VK_SUBTITLE	'Subtitle'
VK_BACK	'BrowserBack'
VK_MENU	'Menu'
VK_PLAY_PAUSE	'MediaPlayPause'

Feature	Memory Requirement	Comment
Downloadable fonts [[!WOFF-20121213]]	1 MB for Western Fonts. 10 MB for Asian fonts.	It is recommended to cache WOFF packages for for a better user experience.
Web Storage [[!WEBSTORAGE-20130730]]	1 MB per origin. 10 MB global.	Terminals may provide methods to free-up memory as described in [[!WEBSTORAGE-20130730]]. If the global limit is exceeded, a Terminal may not be able to guarantee the per-origin storage limit.
Cookies [[!COOKIES]]	At least 4 096 bytes per cookie (as measured by the sum of the length of the cookie's name, value, and attributes). At least 20 cookies per domain. At least 100 cookies total. At least 5 120 bytes for the "Set-Cookie" header.

Support Tables

This section includes support tables for various specifications referenced by this profile. Each feature is given a short description and hyperlinked to its place within the related specification.

Terminals SHALL support all features marked as "Yes" in the "Mandatory" column; if restrictions apply, the feature support is indicated as "Partial" and the "Comment" column provides a description of the normative requirements. Support for all features marked as "No" is OPTIONAL.

Note that specifications that are required to be fully supported don't have a related support table in this section.

HTML5 Profile

Elements

This section lists HTML elements that are either new HTML5 elements or elements already defined in HTML4 and now re-defined in HTML5. Some of the HTML4 elements have slightly modified meanings in HTML5 to better reflect how they are used on the Web or to make them more useful.

Description	Mandatory	Comment
The `body` element of a document is the first child of the `html` element that is either a `body` element or a `frameset` element. If there is no such element, it is null.	Yes
The `base` element allows authors to specify the document base URL for the purposes of resolving relative URLs, and the name of the default browsing context for the purposes of following hyperlinks. The element does not represent any content beyond this information.	Yes
The `meta` element represents various kinds of metadata that cannot be expressed using the `title`, `base`, `link`, `style`, and `script` elements.	Yes
The `style` element allows authors to embed style information in their documents.	Partial	Support for the `scoped` attribute is OPTIONAL.
The `br` element represents a line break.	Yes
The `div` element has no special meaning at all. It represents its children. It can be used with the `class`, `lang`, and `title` attributes to mark up semantics common to a group of consecutive elements.	Yes
	Yes
The `html` element represents the root of an HTML document.	Yes
The `iframe` element represents a nested browsing context.	Yes	Support for the `sandbox`, `srcdoc` and `seamless` attributes is OPTIONAL.
An `img` element represents an image.	Yes
The `li` element represents a list item.	Yes
The `link` element allows authors to link their document to other resources.	Partial	Support for the `sizes` attribute is OPTIONAL. Support for the IDL attribute `relList` is OPTIONAL
The `ol` element represents a list of items, where the items have been intentionally ordered, such that changing the order would change the meaning of the document.	Yes
The `option` element represents an option in a select element or as part of a list of suggestions in a datalist element.	Yes
The `p` element represents a paragraph.	Yes
The `pre` element represents a block of preformatted text, in which structure is represented by typographic conventions rather than by elements.	Yes
The `dl` element represents an association list consisting of zero or more name-value groups (a description list).	Yes
The `dt` element represents the term, or name, part of a term-description group in a description list (`dl` element).	Yes
The `dd` element represents the description, definition, or value, part of a term-description group in a description list (`dl` element).	Yes
The `em` element represents stress emphasis of its contents.	Yes
The `s` element represents contents that are no longer accurate or no longer relevant.	Yes
The `q` element represents some phrasing content quoted from another source.	Yes
The `dfn` element represents the defining instance of a term.	Yes
The `abbr` element represents an abbreviation or acronym, optionally with its expansion.	Yes
The `code` element represents a fragment of computer code.	Yes
The `samp` element represents (sample) output from a program or computing system.	Yes
The `var` element represents a variable	Yes
The `kbd` element represents user input (typically keyboard input, although it may also be used to represent other input, such as voice commands).	Yes
The `sup` element represents a superscript and the `sub` element represents a subscript.	Yes
The `u` element represents a span of text with an unarticulated, though explicitly rendered, non-textual annotation, such as labeling the text as being a proper name in Chinese text (a Chinese proper name mark), or labeling the text as being misspelt.	Yes
The `bdi` element represents a span of text that is to be isolated from its surroundings for the purposes of bidirectional text formatting.	No
The `bdo` element represents explicit text directionality formatting control for its children. It allows authors to override the Unicode bidirectional algorithm by explicitly specifying a direction override.	Yes
The `ins` element represents an addition to the document.	Yes
The `del` element represents a removal from the document.	Yes
The `object` element can represent an external resource, which, depending on the type of the resource, will either be treated as an image, as a nested browsing context, or as an external resource to be processed by a plugin.	Yes
The `param` element defines parameters for plugins invoked by object elements. It does not represent anything on its own.	Yes
The `map` element, in conjunction with any area element descendants, defines an image map. The element represents its children.	Yes
The `area` element represents either a hyperlink with some text and a corresponding area on an image map, or a dead area on an image map.	Partial	Support for the IDL attribute `relList` is OPTIONAL.
The `caption` element represents the title of the table that is its parent, if it has a parent and that is a table element.	Yes
The `table` element represents data with more than one dimension, in the form of a table.	Partial	Support for the `summary` attribute is OPTIONAL
The `colgroup` element represents a group of one or more columns in the table that is its parent, if it has a parent and that is a table element.	Yes
If a `col` element has a parent and that is a `colgroup` element that itself has a parent that is a table element, then the `col` element represents one or more columns in the column group represented by that `colgroup`.	Yes
The `tbody` element represents a block of rows that consist of a body of data for the parent `table` element, if the `tbody` element has a parent and it is a `table`.	Yes
The `thead` element represents the block of rows that consist of the column labels (headers) for the parent `table` element, if the `thead` element has a parent and it is a `table`.	Yes
The `tfoot` element represents the block of rows that consist of the column summaries (footers) for the parent `table` element, if the `tfoot` element has a parent and it is a `table`.	Yes
The `tr` element represents a row of cells in a `table`.	Yes
The `td` element represents a cell in a `table`.	Yes
The `th` element represents a header cell in a `table`.	Yes
The `form` element represents a collection of form-associated elements, some of which can represent editable values that can be submitted to a server for processing.	Yes
The `fieldset` element represents a set of form controls optionally grouped under a common name.	Partial	Support for the `name` and `type` attributes is OPTIONAL.
The `legend` element represents a caption for the rest of the contents of the legend element's parent `fieldset` element, if any.	Yes
The `button` element represents a button.	Yes
The `optgroup` element represents a group of option elements with a common label.	Yes
The `script` element allows authors to include dynamic script and data blocks in their documents. The element does not represent content for the user.	Partial	Support for the `async` attribute is OPTIONAL.
The `noscript` element represents nothing if scripting is enabled, and represents its children if scripting is disabled. It is used to present different markup to user agents that support scripting and those that don't support scripting, by affecting how the document is parsed.	No	Since support for scripting is mandated by this profile, support for this element is not needed.
The `span` element doesn't mean anything on its own, but can be useful when used together with the global attributes, e.g. `class`, `lang`, or `dir`. It represents its children.	Yes
The `title` element represents the document's title or name.	Yes
The `ul` element represents a list of items, where the order of the items is not important � that is, where changing the order would not materially change the meaning of the document.	Yes
Represents a generic document or application section. It can be used together with the `h1`, `h2`, `h3`, `h4`, `h5`, and `h6` elements to indicate the document structure.	Yes
Represents an independent piece of content of a document, such as a blog entry or newspaper article.	Yes
Represents a piece of content that is only slightly related to the rest of the page.	Yes
Represents the header of a section.	Yes
Represents a group of introductory or navigational aids.	Yes
Represents a footer for a section and can contain information about the author, copyright information, etc.	Yes
Represents a section of the document intended for navigation.	Yes
Can be used to associate a caption together with some embedded content, such as a graphic or video.	Yes
Provides the caption for the `figure` element's contents.	Yes
Represents a video or movie. It is a media element whose media data is ostensibly video data, possibly with associated audio data.	Partial	Support for `crossorigin`, `mediagroup`, and `controls` content attributes is OPTIONAL.
Represents a sound or audio stream. It is a media element whose media data is ostensibly audio data.	Partial	Support for `crossorigin`, `mediagroup`, and `controls` content attributes is OPTIONAL.
The `track` element allows authors to specify explicit external timed text tracks for media elements. It does not represent anything on its own.	No	Not required as only support for in-band tracks is required.
Allows authors to specify multiple media resources for media elements. It does not represent anything on its own.	Yes
It is is used for plug-in content. It represents an integration point for an external (typically non-HTML) applications or interactive content.	Yes
Represents a run of text in one document marked or highlighted for reference purposes, due to its relevance in another context.	Yes
Represents a completion of a task such as downloading, or when performing a series of expensive operations.	Yes
Represents a scalar measurement within a known range, or a fractional value; for example: disk usage the relevance of a query result the fraction of a voting population to have selected a particular candidate	Yes
Represents either a time on a 24 hour clock, or a precise date in the proleptic Gregorian calendar, optionally with a time and a time zone. It provides an API for accessing the date/time as a Date object.	No
Allows one or more spans of phrasing content to be marked with ruby annotations. Ruby annotations are short runs of text presented alongside base text, primarily used in East Asian typography as a guide for pronunciation or to include other annotations. In Japanese, this form of typography is also known as furigana.	No
Marks the ruby text component of a ruby annotation.	No
Can be used to provide parentheses around a ruby text component of a ruby annotation, to be shown by user agents that do not support ruby annotations.	No
Represents a line-break opportunity where phrasing content is expected. For example, someone is quoted as saying something which, for effect, is written as one long word. However, to ensure that the text can be wrapped in a readable fashion, the individual words in the quote are separated using a `wbr` element.	Yes
Represents a resolution-dependent bitmap canvas, which can be used for rendering graphs, game graphics, or other visual images on the fly.	Partial	For details on support of Canvas APIs, see annex .
Represents a command that the user can invoke.	No
Represents additional information or controls which the user can obtain on demand.	No
Represents a summary, caption, or legend for the rest of the contents of the summary element's parent details element, if any.	No
Represents a set of `option` elements that represent predefined options for other controls. The contents of the element represents fallback content for legacy user agents, intermixed with `option` elements that represent the predefined options. In the rendering, the `datalist` element represents nothing and it, along with its children, should be hidden. The `datalist` element together with the new `list` attribute for input can be used to make comboboxes.	Yes
Represents a key pair generator control. When the control's form is submitted, the private key is stored in the local keystore, and the public key is packaged and sent to the server.	Yes
Represents some type of output, as from a calculation done through scripting.	Yes
Represents a multiline plain text edit control for the element's raw value.	Yes
Represents a control for selecting amongst a set of options.	Yes
The `input` element represents a typed data field, usually with a form control to allow the user to edit the data. The `input` element `type` attribute has the following values. "text" "url" "email" "datetime" "date" "month" "week" "time" "datetime-local" "number" "range" "tel" "search" "color" "checkbox" "image" "file"	Partial	The following values for the type attribute SHALL be supported: "`text`", "`url`", "`email`", "`number`", "`range`", "`tel`", "`search`", "`checkbox`", "`date`"; all other values are OPTIONAL to support (note that some are marked as feature at risk in [[!HTML5-20130806]]). Support for the `autocomplete` attribute is OPTIONAL.
The `a` element without an `href` attribute now represents a "placeholder link". It can also contain flow content rather than being restricted to phrase content.	Partial	Support for the IDL attribute `relList` is OPTIONAL.
The `address` element is now scoped by the new concept of sectioning. It represents the contact information for its nearest article or body element ancestor. If that is the body element, then the contact information applies to the document as a whole.	Yes
The `b` element represents a span of text to be stylistically offset from the normal prose without conveying any extra importance, such as key words in a document abstract, product names in a review, or other spans of text whose typical typographic presentation is boldened.	Yes
The `cite` element now solely represents the title of a work (e.g. a book, a paper, an essay, a poem, a score, a song, a script, a film, a TV show, a game, a sculpture, a painting, a theatre production, a play, an opera, a musical, an exhibition, a legal case report, etc). Specifically the example in HTML4 where it is used to mark up the name of a person is no longer considered conforming.	Yes
The `hr` element represents a paragraph-level thematic break, e.g. a scene change in a story, or a transition to another topic within a section of a reference book.	Yes
The `i` element represents a span of text in an alternate voice or mood, or otherwise offset from the normal prose, such as a taxonomic designation, a technical term, an idiomatic phrase from another language, a thought, a ship name, or some other prose whose typical typographic presentation is italicized.	Yes
For the `label` element the browser should no longer move focus from the label to the control unless such behavior is standard for the underlying platform user interface.	Yes
The `menu` element represents a list of commands and is redefined to be useful for toolbars and context menus.	Partial	`menu` element of `type` list SHALL be supported. Support for other types is OPTIONAL. Support for the `label` attribute is OPTIONAL.
The `small` element now represents small print (for side comments and legal print).	Yes
The `strong` element now represents importance rather than strong emphasis.	Yes
The `head` element no longer allows the object element as child.	Yes

Global Attributes

Attribute Name	Description	Mandatory
`accesskey`	The accesskey attribute's value is used by the user agent as a guide for creating a keyboard shortcut that activates or focuses the element.	No
`class`	Every HTML element may have a class attribute specified. The attribute, if specified, must have a value that is an unordered set of unique space-separated tokens representing the various classes that the element belongs to. The classes that an HTML element has assigned to it consist of all the classes returned when the value of the class attribute is split on spaces.	Yes
`dir`	The `dir` attribute specifies the element's text directionality (left-to-right, or right-to-left). The attribute is an enumerated attribute with the keyword `ltr` (left-to-right) mapping to the state `ltr`, and the keyword `rtl` (right-to-left) mapping to the state `rtl`. The attribute has no default.	Yes
`id`	The `id` attribute represents its element's unique identifier. The value must be unique in the element's home subtree and must contain at least one character. The value must not contain any space characters.	Yes
`lang`	The `lang` attribute (in no namespace) specifies the primary language for the element's contents and for any of the element's attributes that contain text. Its value must be a valid BCP 47 language code, or the empty string.	Yes
`style`	All HTML elements may have the `style` content attribute set. If specified, the attribute must contain only a list of zero or more semicolon-separated (;) CSS declarations. In user agents that support CSS, the attribute's value must be parsed when the attribute is added or has its value changed, with its value treated as the body (the part inside the curly brackets) of a declaration block in a rule whose selector matches just the element on which the attribute is set. All URLs in the value must be resolved relative to the element when the attribute is parsed. For the purposes of the CSS cascade, the attribute must be considered to be a `style` attribute at the author level. Documents that use `style` attributes on any of their elements must still be comprehensible and usable if those attributes were removed.	Yes
`tabindex`	The `tabindex` content attribute specifies: If the element is focusable If it can be reached using sequential focus navigation The relative order of the element for the purposes of sequential focus navigation The name "tab index" comes from the common use of the `tab` key to navigate through the focusable elements. The term "tabbing" refers to moving forward through the focusable elements that can be reached using sequential focus navigation. If it is specified, it must have a value that is a valid integer.	Yes
`title`	The `title` attribute represents advisory information: For an element, such as would be appropriate for a tooltip On a link, this could be the title or a description of the target resource On an image, it could be the image credit or a description of the image On a paragraph, it could be a footnote or commentary on the text On a citation, it could be further information about the source etc. The value is text.	Yes
`contenteditable / isContentEditable`	The `contenteditable` attribute is an enumerated attribute whose keywords are the `empty string`, `true`, and `false`. The empty string and the true keyword map to the true state. The false keyword maps to the false state. In addition, there is a third state, the `inherit` state, which is the missing value default (and the invalid value default). The `true` state indicates that the element is editable. The `inherit` state indicates that the element is editable if its parent is. The `false` state indicates that the element is not editable.	No
`designMode`	Documents have a designMode, which can be either enabled or disabled. When enabled, the document is editable.	No
`contextmenu`	The `contextmenu` attribute gives the element's context menu. The value must be the ID of a menu element in the DOM. If the node that would be obtained by the invoking the `getElementById()` method using the attribute's value as the only argument is `null` or not a menu element, then the element has no assigned context menu. Otherwise, the element's assigned context menu is the element so identified.	No
`data-*`	A custom `data` attribute is an attribute in no namespace whose name starts with the string "`data-`", has at least one character after the hyphen, is XML-compatible, and contains no characters in the range U+0041 .. U+005A (LATIN CAPITAL LETTER A .. LATIN CAPITAL LETTER Z). Custom data attributes are intended to store custom data private to the page or application, for which there are no more appropriate attributes or elements. These attributes are not intended for use by software that is independent of the site that uses the attributes. Every HTML element may have any number of custom data attributes specified, with any value. They refer to the DOM Dataset API.	Yes
`draggable`	All HTML elements may have the `draggable` content attribute set. It is an enumerated attribute, and has three states: The first state is true and it has the keyword `true`. The true state means the element is draggable. The second state is false and it has the keyword `false`. The false state means that it is not draggable. The third state is `auto`; it has no keywords but it is the missing value default. The auto state uses the default behavior of the user agent.	No
`dropzone`	All HTML elements may have the dropzone content attribute set.	No
`hidden`	All HTML elements may have the `hidden` content attribute set. The hidden attribute is a boolean attribute. When specified on an element, it indicates that the element is not yet, or is no longer, relevant. User agents should not render elements that have the hidden attribute specified.	Yes
`spellcheck`	The spellcheck attribute is an enumerated attribute whose keywords are the empty string, true and false. The empty string and the true keyword map to the true state. The false keyword maps to the false state. Please note that the "default" state has been removed. The true state indicates that the element is to have its spelling and grammar checked. The false state indicates that the element is not to be checked.	No

Web Applications APIs

HTML5 introduces a number of APIs that help creating applications.

API Name	Description	Mandatory	Comment
Media Elements	An API for playing of video and audio which can be used with the new `<video>` and `<audio>` elements.	Partial	See profile in annex
Application cache	An API that enables offline Web applications.	No	This feature is potentially useful but marked as feature at risk in [[!HTML5-20130806]] and likely to change in the near future.
Custom scheme and content handlers	An API that allows a Web application to register itself for certain protocols or media types.	No	Not relevant for this profile. Also, marked as feature at risk in [[!HTML5-20130806]]
Custom search provider	An API that allows a Web application to register itself for certain search provider.	No	Not relevant for this profile. Also, marked as feature at risk in [[!HTML5-20130806]]
Drag and drop	This API works in combination with a `draggable` attribute.	No
History	An API that exposes the history and allows pages to add to it to prevent breaking the back button.	Yes
Base64 utility methods	An API that allow authors to transform content to and from the base64 encoding.	Yes

Media APIs

HTML Media APIs SHALL be supported as profiled below

Interface	Attribute Name	Mandatory	Comment
`HTMLVideoElement`	`width`	Yes
	`height`	Yes
	`videoWidth`	Yes
	`videoHeight`	Yes
	`poster`	Yes
`HTMLAudioElement`		Yes
`HTMLSourceElement`	`src`	Yes
	`type`	Yes
	`media`	Yes
`HTMLTrackElement`		No
`HTMLMediaElement`	`error`	Yes
	`src`	Yes
	`currentSrc`	Yes
	`crossOrigin`	No
	`networkState`	Yes
	`preload`	Yes
	`buffered`	Yes
	`load()`	Yes
	`canPlayType()`	Yes
	`readyState`	Yes
	`seeking`	Yes
	`currentTime`	Yes
	`duration`	Yes
	`startDate`	No
	`paused`	Yes
	`defaultPlaybackRate`	Yes
	`playbackRate`	Yes
	`played`	Yes
	`seekable`	Yes
	`ended`	Yes
	`autoplay`	Yes
	`loop`	Yes
	`play()`	Yes
	`pause()`	Yes
	`mediaGroup`	No
	`controller`	No
	`controls`	No
	`volume`	Yes
	`muted`	Yes
	`defaultMuted`	Yes
	`videoTracks`	No
	`audioTracks`	Yes
	`textTracks`	Yes	Only support for in-band tracks is required
	`addTextTrack`	No
`MediaError`	`code`	Yes
`AudioTrackList`	`length`	Yes
	`getter(index)`	Yes
	`getTrackById()`	Yes
	`onchange`	Yes
	`onaddtrack`	No
	`onremovetrack`	No
`AudioTrack`	`id`	Yes
	`kind`	Yes
	`label`	Yes
	`language`	Yes
	`enabled`	Yes
`VideoTrackList`		No
`VideoTrack`		No
`TextTrackList`		Yes
`TextTrack`	`kind`	Yes
	`label`	Yes
	`language`	Yes
	`onMetadataTrackDispatchType`	Yes
	`mode`	Yes
	`cues`	No
	`activeCues`	No
	`addCue`	No
	`removeCue`	No
	`oncuechange`	No
`TextTrackCueList`		No
`TextTrackCue`		No
`MediaController`		No
`TimeRange`	`length`	Yes
	`start`	Yes
	`end`	Yes
`TrackEvent`		Yes

Media Element Events Support

Events	Mandatory
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	Yes
	HbbTV says "Yes"
	Yes

CSS3 Profile

This section contains support tables for various CSS specifications.

CSS Basic User Interface

Properties and Values

Property	Values	Description	Mandatory	Comment
`appearance`	normal \| <appearance> \| inherit	This property can be used to make an element look like a standard user interface element on the platform. It is a shorthand for "appearance", "color", "font", and "cursor".	No
`box-sizing`	padding-box \| content-box \| border-box \| inherit	This property specifies a border/padding value in relation to a fluid length element.	Partial	Support for property value `padding-box` is OPTIONAL (marked as feature at risk in [[!HTML5-20130806]])
`content`	icon	This property is used with the :before and :after pseudo-elements to generate content in a document.	No	Marked as feature at risk in [[!HTML5-20130806]]
`cursor`	[ [<uri> [<x> <y>]?,]* [ auto \| default \| none \| context-menu \| help \| pointer \| progress \| wait \| cell \| crosshair \| text \| vertical-text \| alias \| copy \| move \| no-drop \| not-allowed \| e-resize \| n-resize \| ne-resize \| nw-resize \| s-resize \| se-resize \| sw-resize \| w-resize \| ew-resize \| ns-resize \| nesw-resize \| nwse-resize \| col-resize \| row-resize \| all-scroll \| zoom-in \| zoom-out ] ] \| inherit	This property specifies the type of cursor to be displayed for the pointing device.	Yes
`font`	<appearance> \| status-bar \| message-box \| caption \| small-caption \| inherit	The shorthand "font" property has the effect of setting all of the elemental "font-*" properties.	Yes
`icon`	auto \| <uri> [, <uri>]* \| inherit	The "icon" property give the author the ability to style any arbitrary element with an iconic equivalent.	No	Feature at risk in [[!HTML5-20130806]]
`nav-index`	auto \| <number> \| inherit	This property is an input-method-neutral way of specifying the sequential navigation order, also known as "tabbing order".	Yes
`nav-up`	auto \| <id> [ current \| root \| <target-name> ]? \| inherit	This property allows User agents for devices with directional navigation keys to respond by navigating the nav-up focus.	Yes
`nav-right`	auto \| <id> [ current \| root \| <target-name> ]? \| inherit	This property allows User agents for devices with directional navigation keys to respond by navigating the nav-right focus.	yes
`nav-down`	auto \| <id> [ current \| root \| <target-name> ]? \| inherit	This property allows User agents for devices with directional navigation keys to respond by navigating the nav-down focus.	Yes
`nav-left`	auto \| <id> [ current \| root \| <target-name> ]? \| inherit	This property allows User agents for devices with directional navigation keys to respond by navigating the nav-left focus.	Yes
`outline`	[ <"outline-color"> \|\| <"outline-style"> \|\| <"outline-width"> ] \| inherit	This property allows authors who want to create outlines around visual objects such as buttons, active form fields, image maps, etc., to make them stand out.	Yes
`outline-color`	<color> \| invert \| inherit	This property controls the border color of a dynamic outline.	Yes
`outline-offset`	<length> \| inherit	This property controls the border offset of a v	Yes
`outline-style`	auto \| <border-style> \| inherit	This property controls the border style of a dynamic outline.	Partial	At this time `outline-style` SHALL be supported as defined by CSS2.1 specification, so support for value `auto` is not required.
`outline-width`	<border-width> \| inherit	This property controls the border width of a dynamic outline.	Yes
`resize`	none \| both \| horizontal \| vertical \| inherit	This property allows an author to specify whether or not an element is resizable by the user, and if so, along which axis/axes.	No
`ime-mode`	auto \| normal \| active \| inactive \| disabled \| inherit	The 'ime-mode' CSS property controls the state of the input method editor for text fields.	No	Feature at risk in [[!HTML5-20130806]]
`text-overflow`	( clip \| ellipsis \| ){1,2} \| inherit	This property specifies rendering when inline content overflows its block container element ("the block") in its inline progression direction that has 'overflow' other than 'visible'	Partial	Support for the `text-overflow` property value <string> and the `text-overflow` property 2-value syntax and definition is OPTIONAL (marked as feature at risk in [[!CSS3UI-20120117]]).

User interface pseudo classes

Pseuso class	Mandatory	Comment
`:active`	Yes
`:checked`	Yes
`:default`	Yes
`:disabled`	Yes
`:endabled`	Yes
`:focus`	Yes
`:hover`	Yes
`:in-range`	Yes
`:indeterminate`	Yes
`:invalid`	Yes
`:optional`	Yes
`:out-of-range`	Yes
`:read-only`	Yes
`:read-write`	Yes
`:required`	Yes
`:valid`	Yes
`:visited`	Yes

CSS Image Values and Replaced Content

Terminals SHALL support Gradients as defined in CSS Image Values and Replaced Content [[!CSS3-IMAGES-20120417]]. Support for other features is OPTIONAL.

CSS Backgrounds and Borders

Terminals SHALL support all features in CSS Backgrounds and Borders [[!CSS3-BG-20120724]] with the exception of the border-image set of properties.

CSS Fonts Module Level 3

Terminals SHALL support the [[!CSS3-FONTS-20130212]] specification as profiled below:

The font-family, font-weight, font-style, font-size and font properties SHALL be supported. Support for other properties is OPTIONAL.
Support for the values caption, icon, menu, message-box, small-caption, status-bar of the font property is OPTIONAL.
The @font-face rule SHALL be supported. Support for other rules is OPTIONAL.
src, font-family, font-size and font-weight descriptors for the @font-face rule SHALL be supported. Support for other descriptors is OPTIONAL.

CSS Text Level 3

Terminals SHALL support text-shadow.

CSS Transforms

Only support for the two-dimensional subset of the specification is required. See section "Two Dimensional Subset" of [[!CSS3-TRANSFORMS-20120911]]
NOTE: This implies that
- only support for transform and transform-origin properties is required
- only support for matrix(), translate(), translateX(), translateY(), scale(), scaleX(), scaleY(), rotate(), skewX(), skewY() transform functions is required.
Transform function lists SHALL be supported
Support for the SVG extensions is not required

CSS Transitions

Support for the pseudoElement field on the TransitionEvent interface is OPTIONAL.

Support for the pseudoElementArg argument for the initTransitionEvent method is OPTIONAL

The list of “animatable” properties in [[!CSS3-TRANSITIONS-20130212]] SHALL be profiled as indicated in the table below. For any other property not listed below, the following holds: if a property is supported by this profile and is defined to be "animatable" by the related CSS spec, than it SHALL be animatable, unless explicitly excluded by this specification.

Property Name	Type	Mandatory
`background-color`	color	Yes
`background-image`	only gradients	No
`background-position`	percentage, length	No
`border-bottom-color`	color	No
`border-bottom-width`	length	Yes
`border-color`	color	No
`border-left-color`	color	No
`border-left-width`	length	Yes
`border-right-color`	color	No
`border-right-width`	length	Yes
`border-spacing`	length	Yes
`border-top-color`	color	No
`border-top-width`	length	Yes
`border-width`	length	Yes
`bottom`	length, percentage	Yes
`color`	color	Yes
`crop`	rectangle	No
`font-size`	length, percentage	Yes
`font-weight`	number	Yes
`grid-*`	various	No
`height`	length, percentage	Yes
`left`	length, percentage	Yes
`letter-spacing`	length	Yes
`line-height`	number, length, percentage	Yes
`margin-bottom`	length	Yes
`margin-left`	length	Yes
`margin-right`	length	Yes
`margin-top`	length	Yes
`max-height`	length, percentage	Yes
`nax-width`	length, percentage	Yes
`min-height`	length, percentage	Yes
`min-width`	length, percentage	Yes
`opacity`	number	Yes
`outline-color`	color	Yes
`outline-offset`	integer	Yes
`outline-width`	length	Yes
`padding-bottom`	length	Yes
`padding-left`	length	Yes
`padding-right`	length	Yes
`padding-top`	length	Yes
`right`	length, percentage	Yes
`text-indent`	length, percentage	Yes
`text-shadow`	shadow	No
`top`	length, percentage	Yes
`vertical-align`	keywords, length, percentage	Yes
`visibility`	visibility	Yes
`width`	length, percentage	Yes
`word-spacing`	length, percentage	Yes
`z-index`	integer	Yes
`zoom`	number	No

Web APIs Profile

XMLHttpRequest

Support for Document response type is OPTIONAL. All other features SHALL be supported.

Web Workers

Support for Shared Workers is OPTIONAL.

Canvas 2D

Support for the following interfaces is not required by this profile

Path
DrawingStyle
HitRegionOptions

All the others SHALL be supported as profiled below

HTMLCanvasElement

Member	Mandatory	Comment
`width`	Yes
`height`	Yes
`toDataURL()`	Yes
`getContext(context)`	Yes

TextMetrics

Member	Mandatory	Comment
`width`	Yes
`actualBoundingBoxLeft`	No
`actualBoundingBoxRight`	No
`fontBoundingBoxAscent`	No
`fontBoundingBoxDescent`	No
`actualBoundingBoxAscent`	No
`actualBoundingBoxDescent`	No
`emHeightAscent`	No
`emHeightDescent`	No
`hangingBaseline`	No
`alphabeticBaseline`	No
`ideographicBaseline`	No

CanvasGradient

Member	Mandatory	Comment
`addColorStop(offset, color)`	Yes

CanvasRenderingContext2D

Member	Mandatory	Comment
`canvas`	Yes
`save()`	Yes
`restore()`	Yes
`scale(x, y)`	Yes
`rotate(angle)`	Yes
`translate(x, y)`	Yes
`transform(m11, m12, m21, m22, dx, dy)`	No
`setTransform(m11, m12, m21, m22, dx, dy)`	No
`globalAlpha`	Yes
`globalCompositeOperation`	Yes	The value `source-over` for this property SHALL be supported. Support for other values is OPTIONAL.
`strokeStyle`	Yes
`fillStyle`	Yes
`createImageData(sw, sh)`	Yes
`createImageData(imagedata)`	Yes
`createLinearGradient(x0, y0, x1, y1)`	Yes	If this feature is not hardware accelerated, performance will be limited
`createRadialGradient(x0, y0, r0, x1, y1, r1)`	Yes	If this feature is not hardware accelerated, performance will be limited
`createPattern(image, repetition)`	Yes
`lineWidth`	Yes
`lineCap`	Yes	If this feature is not hardware accelerated, performance will be limited
`lineJoin`	Yes
`miterLimit`	Yes
`shadowOffsetX`	Yes
`shadowOffsetY`	Yes
`shadowBlur`	Yes	If this feature is not hardware accelerated, performance will be limited
`shadowColor`	Yes
`clearRect(x, y, w, h)`	Yes
`fillRect(x, y, w, h)`	Yes
`strokeRect(x, y, w, h)`	Yes	If this feature is not hardware accelerated, performance will be limited
`beginPath()`	Yes
`closePath()`	Yes
`moveTo(x, y)`	Yes
`lineTo(x, y)`	Yes
`quadraticCurveTo(cpx, cpy, x, y)`	No
`bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y)`	No
`arcTo(x1, y1, x2, y2, radius)`	No
`rect(x, y, w, h)`	Yes
`arc(x, y, radius, startAngle, endAngle, anticlockwise)`	No
`ellipse(x, y, radiusX, radiusY, rotation, startAngle, endAngle, anticlockwise)`	No
`fill()`	Yes
`fill(path)`	No
`stroke()`	Yes
`stroke(path)`	No
`clip()`	No
`clip(path)`	No
`isPointInPath(x, y)`	Yes
`isPointInPath(path, x, y)`	No
`drawImage(image, dx, dy)`	Yes
`drawImage(image, dx, dy, dw, dh)`	Yes
`drawImage(image, sx, sy, sw, sh, dx, dy, dw, dh)`	Yes
`getImageData(sx, sy, sw, sh)`	Yes
`putImageData(image, dx, dy)`	Yes
`putImageData(image, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight)`	No
`font`	Yes
`textAlign`	Yes
`textBaseline`	Yes
`fillText`	Yes
`strokeText`	Yes
`measureText`	Yes
`setLineDash(segments)`	No
`getLineDash()`	No
`lineDashOffset`	No
`drawSystemFocusRing(element)`	No
`drawSystemFocusRing(path, element)`	No
`drawCustomFocusRing(element)`	No
`drawCustomFocusRing(path, element)`	No
`scrollPathIntoView`	No
`scrollPathIntoView(path)`	No
`addHitRegion(options)`	No
`removeHitRegion(options)`	No

Introduction

References

Terminology and Conventions

Conventions

Definitions

Abbreviations

Markup

Style

Basic Graphic

Device Adaptation, Layout and Processing

Text and Fonts

Advanced Graphic

Scripting

ECMAScript

Event model

CSSOM View

Application APIs

Media Formats and Protocols

Memory Usage (Informative)