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Compliance Corner

Compliance corner comprises a series of issues that have arisen in the context of projects meeting technical standards. This page covers:

DOCTYPE Declaration


Existing advice may be found at :
Website FAQs list.
NOF-DIGI email archive


Every HTML or XHTML page on your website has to carry a statement called a document type declaration, or DOCTYPE, if it is to be correctly validated. Such DOCTYPE declarations are needed to ensure that browsers pointed at each (X)HTML page correctly interpret the mark-up it contains, i.e. the 'flavour' of HTML or XHTML being used. Without a DOCTYPE declaration, your pages may not be correctly displayed by a sufficiently wide range of browsers.

It is important to identify at the very top of every (X)HTML page the document type definition (DTD), that your DOCTYPE declaration should be naming. To see examples of DOCTYPE declarations, go to HTML version information at : http://www.w3.org/TR/REC-html40/struct/global.html#h-7.2
which provides descriptions of the purpose of the different kinds of DTD.

See also:
Document Conformance http://www.w3.org/TR/xhtml1/#docconf
W3C MarkUp Validation Service http://validator.w3.org/


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This page was last updated on Monday, May 09, 2005


 
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Page last updated on Monday, May 09, 2005