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Some tags that resemble HTML are actually MediaWiki parser and extension tags, and so are actually wiki markup. HTML included in pages can be validated for HTML5 compliance by using validation. Note that some elements and attributes supported by MediaWiki and browsers have been deprecated by HTML5 and should no longer be used.
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In HTML, a frameset is a group of named frames to which web pages and media can be directed; an iframe provides for a frame to be placed inside the body of a document. Since the early 2000s, concern for usability and accessibility has motivated diminished use of framesets and the HTML5 standard does not support them.
Use the link button on the enhanced editing toolbar to encode the link; this tool will add the bracket markup and the linked text, which may not always be desirable. Or manually encode the URL by replacing these characters:
CSS does not just apply to visual styling: when spoken out loud by a voice browser, CSS styling can affect speech-rate, stress, richness and even position within a stereophonic image. For these reasons, and in support of a more semantic web, attributes attached to elements within HTML should describe their semantic purpose, rather than merely ...
Users who visit pages containing these types of links, (whilst using a browser which employs an indiscriminate link prefetcher), might find that they have been logged out or that their files have been deleted. [14] Additionally, there are a number of criticisms regarding the privacy and resource usage implications of link prefetching:
A link relation is a descriptive attribute attached to a hyperlink in order to define the type of the link, or the relationship between the source and destination resources. The attribute can be used by automated systems, or can be presented to a user in a different way. In HTML these are designated with the rel attribute on link, a, or area ...
Traditional HTML frames that were introduced with HTML 4.0 were useful for their ability to combine several distinct Web pages into a single webpage view. However, several problems arose from the implementation and as such, frames have been removed from the W3C XHTML 1.1 standard. XFrames was supposed to address some of the following problems ...