Media Queries - 0 views
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Abstract HTML4 and CSS2 currently support media-dependent style sheets tailored for different media types. For example, a document may use sans-serif fonts when displayed on a screen and serif fonts when printed. ‘screen’ and ‘print’ are two media types that have been defined. Media queries extend the functionality of media types by allowing more precise labeling of style sheets. A media query consists of a media type and zero or more expressions that check for the conditions of particular media features. Among the media features that can be used in media queries are ‘width’, ‘height’, and ‘color’. By using media queries, presentations can be tailored to a specific range of output devices without changing the content itself.
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There must be at least two interoperable implementations. For the purposes of this criterion, we define the following terms: interoperable passing the respective test case(s) in the CSS test suite, or, if the implementation is not a Web browser, an equivalent test. Every relevant test in the test suite should have an equivalent test created if such a user agent (UA) is to be used to claim interoperability. In addition if such a UA is to be used to claim interoperability, then there must one or more additional UAs which can also pass those equivalent tests in the same way for the purpose of interoperability. The equivalent tests must be made publicly available for the purposes of peer review.
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While the candidate Media Queries specification is interesting and a small step in the right direction, W3C continues to butcher the meaning of "interoperability." In this latest sleight of hand, we now have "interoperable" *user agents*, a term of art used by W3C for implementations that only receive and cannot return data, e.g., web browsers. But under competition law, "interoperability" requires implementations that can exchange data and *mutually* use data that has been exchanged. See e.g., European Commission v. Microsoft, European Community Court of First Instance (Grand Chamber Judgment of 17 September, 2007), para. 230, 374, 421, http://tinyurl.com/23md42c (rejecting Microsoft's argument that "interoperability" has a 1-way rather than 2-way meaning; "Directive 91/250 defines interoperability as 'the ability to exchange information and *mutually* to use the information which has been exchanged'") (emphasis added). W3C --- the World Wide Web Conspiracy --- continues down its rut of broadcasting information whilst denying the world the power to round-trip the data received. Incredibly, in its latest assault on the meaning of "interoperability", W3C no longer defines "conformance" but redefines the term "interoperability" as its substitute for "conformance." As though W3C could redefine the law?