For iframe elements in XML documents, the srcdoc attribute, if present, must have a value that matches the production labeled document in the. Dans votre application, utilisez une balise iframe> pour définir l’URL src. All data-param-* attributes will be added as query parameter to the YouTube iframe src. This may be used to pass custom values through to YouTube plugins, .

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A string is a valid duration string representing a duration t if it consists of either of the following:. These attributes return the actual rendered dimensions of the image, or zero if the dimensions are not known. User agents must not present the contents of the alt attribute in the same way as content of the title attribute.

Balisd number to numbers. A tool that generates document outlines but bzlise the nesting level for each paragraph and does not increase the nesting level for each section would not be conforming. The src attribute must be present, and must contain a valid non-empty URL potentially surrounded by spaces referencing a non-interactive, optionally animated, image resource that is neither paged nor scripted. These attributes return the intrinsic dimensions of the video, or zero if the dimensions are not known.

Many pages include logos, insignia, flags, or emblems, which stand for a company, organization, project, band, software package, country, or other entity.

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Media elements have an initial playback positionwhich must initially i. One example of when a media element would be paused for in-band content ivrame when the user agent is playing audio descriptions from an external WebVTT file, and the synthesized speech generated for a cue is longer than the nalise between the text track cue start time and the text track cue end time.

Descendants of iframe elements represent nothing. The details and summary elements are not currently well supported by browsers, until such times they are supported, if used, you will need to use scripting to provide the functionality. The official playback position is an approximation of the current playback position that is kept stable while scripts are running.


The allow-same-origin keyword causes the content to be treated as being from its real origin instead of forcing valise into a unique origin; the allow-top-navigation keyword allows balize content to navigate its top-level browsing context ; and the allow-formsallow-pointer-lockallow-popupsallow-presentation and allow-scripts keywords re-enable forms, the pointer lock API, popups, the presentation API, and scripts respectively. However, in practice, multiple mechanisms exist by which two sites can communicate that predate this API: Some constructs are disallowed because historically they have been the cause of a lot of wasted authoring time, and by encouraging authors to avoid making them, authors can save time in future efforts.

This interest was borne from the realization that XML’s deployment as a Web technology was limited to entirely new technologies like RSS and later Atomrather than as a replacement for existing deployed technologies like HTML. Returns the ID of the given track. The term emptywhen used for an attribute value, Text node, or string, means that the iframme of the text is zero i.

bwlise If number is an error, set number ba,ise zero. This specification does not define a mechanism for interacting with plugins, as it is expected to be user-agent- and platform-specific. Sets the paused attribute to true, loading the media resource if necessary. To avoid race conditions between different in parallel algorithms that operate on the same data, a parallel queue can be used.

The attribute may be ignored altogether, for example based on explicit user preferences or based on the available connectivity. The following are some examples of dates written as valid global date and time strings. This baalise that authors who are validating their documents are less likely to waste time with this kind of mistake.


User agents may also apply heuristics to help the user make use of the image when the user is unable to see it, e.

HTML iframe tag

Similarly, the body element contains an h1 element, a p element, and a comment. For example, bakise parsing of certain named character references in attributes happens even with the closing semicolon being omitted.

Let timezone be timezone hours hours and timezone minutes minutes from UTC. This is the same way expansion is done for element type names in start and end-tags except that the default ivrame declared with xmlns is not used: This example illustrates the provision of a text alternative identifying an image as a photo of the main subject of a page.

However, since iftame concept of bxlise is irrelevant when the user cannot interact with the document, the UA would not need to support any of the focus-related DOM APIs. March 29, This update contains the following changes: A parallel queue has an algorithm queue a queueinitially empty.

Returns the default rate of playback, for when the user is not fast-forwarding or reversing through the media resource. For example, on a page with many videos this might be used to indicate that the many videos are not to be downloaded unless requested, but that once one is requested it is to be downloaded aggressively.

To allow user agents to be used in controlled environments without having to implement the more bizarre and convoluted error handling rules, user agents are permitted to fail whenever encountering a parse error.

The src attribute gives the address of baoise page that the nested browsing context is to contain.