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___________ has a grammar but unlike traditional (X)HTML it is not defined with a document type definition.
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- CSS 2.1
- CSS 1
- CSS 3
- CSS 2
- None of these
Correct Option: A
CSS 2.1 has a grammar (www.w3.org/TR/CSS21/grammar.html) but unlike traditional (X)HTML it is not defined with a document type definition. Instead the CSS specification is a combination of prose and a grammar that could be used to build a simple parser.