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InfoWorld - One of the sly games that smart managers play is attaching their current project to a big, high-profile tar ball rolling down the hill, full of momentum. Now that HTML5 has become white hot after languishing for 10 years of relative disinterest, many ideas that began as cool enhancements for the Web are latching on to the bandwagon. They may be relatively independent projects, but because they involve JavaScript and HTML, they're now part of the HTML5 juggernaut.

Features listed in this section will trigger warnings in conformance checkers. Authors should not specify an http-equiv attribute in the Content Language state on a meta element. The lang attribute should be used instead. Authors should not specify a border attribute on an img element. If the attribute is present, its value must be the string "0". CSS should be used instead. Authors should not specify a language attribute on a script element. If the attribute is present, its value must be an ASCII case-insensitive match for the string "JavaScript" and either the type attribute must be omitted or its value must be an ASCII case-insensitive match for the string "text/javascript". The attribute should be entirely omitted instead (with the value "JavaScript", it has no effect), or replaced with use of the type attribute. Authors should not specify the name attribute on a elements. If the attribute is present, its value must not be the empty string and must neither be equal to the value of any of the IDs in the element's home subtree other than the element's own ID, if any, nor be equal to the value of any of the other name attributes on a elements in the element's home subtree. If this attribute is present and the element has an ID, then the attribute's value must be equal to the element's ID. In earlier versions of the language, this attribute was intended as a way to specify possible targets for fragment identifiers in URLs. The id attribute should be used instead.

Modernizr is an open-source JavaScript library that helps you build the next generation of HTML5 and CSS3-powered websites.