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Recommended DTDs to use in your Web document

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Recommended DTDs to use in your Web document.

When authoring document is HTML or XHTML, it is important to Add a Doctype declaration. The declaration must be exact (both in spelling and in case) to have the desired effect, which makes it sometimes difficult. To ease the work, below is a list of recommended declarations that you can use in your Web documents.
Template

Use the following markup as a template to create a new XHTML 1.0 document using a proper DOCTYPE. See the list below if you wish to use another document type.

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
	<title>An XHTML 1.0 Strict standard template</title>
	<meta http-equiv="content-type" 
		content="text/html;charset=utf-8" />
	<meta http-equiv="Content-Style-Type" content="text/css" />
</head>

<body>

<p>â€¦ Your HTML content here â€¦</p>

</body>
</html>

DTD List

HTML 4.01 - Strict, Transitional, Frameset:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
       "http://www.w3.org/TR/html4/strict.dtd">
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
       "http://www.w3.org/TR/html4/loose.dtd">
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN"
       "http://www.w3.org/TR/html4/frameset.dtd">

XHTML 1.0 - Strict, Transitional, Frameset:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">

XHTML 1.1 - DTD:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" 
       "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

XHTML Basic 1.0 - DTD:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.0//EN"
        "http://www.w3.org/TR/xhtml-basic/xhtml-basic10.dtd">

XHTML Basic 1.1 - DTD:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN"
        "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">

HTML 2.0 - DTD:

<!DOCTYPE html PUBLIC "-//IETF//DTD HTML 2.0//EN">

HTML 3.2 - DTD:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">

MathML 1.01 - DTD:

<!DOCTYPE math SYSTEM 
    	"http://www.w3.org/Math/DTD/mathml1/mathml.dtd">

MathML 2.0 - DTD:

<!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN"	
    	"http://www.w3.org/TR/MathML2/dtd/mathml2.dtd">

XHTML + MathML + SVG - DTD:

<!DOCTYPE html PUBLIC
        "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN"
        "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">

SVG 1.0 - DTD:

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
    	"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">

SVG 1.1 Full - DTD:

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
    	"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

SVG 1.1 Basic - DTD:

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Basic//EN"
    	"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd">

SVG 1.1 Tiny - DTD:

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Tiny//EN"
    	"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd">

XHTML + MathML + SVG Profile (XHTML as the host language) - DTD:

<!DOCTYPE html PUBLIC
        "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN"
        "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">

XHTML + MathML + SVG Profile (Using SVG as the host) - DTD:

<!DOCTYPE svg:svg PUBLIC
        "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN"
        "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">

List of DTDs for the CSS validator.

Authoring tools MUST NOT use the following list.

HTML 4.0
    http://www.w3.org/TR/1998/REC-html40-19980424/strict.dtd
    http://www.w3.org/TR/1998/REC-html40-19980424/loose.dtd
    http://www.w3.org/TR/1998/REC-html40-19980424/frameset.dtd
HTML 4.01
    http://www.w3.org/TR/1999/REC-html401-19991224/strict.dtd
    http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd
    http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd
XHTML 1.0
    http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-strict.dtd
    http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-transitional.dtd
    http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-frameset.dtd
XHTML 1.1
    http://www.w3.org/TR/2001/REC-xhtml11-20010531/DTD/xhtml11.dtd

Valid XHTML 1.0! Send us Feedback
Last updated: $Date: 2007/04/26 07:52:11 $ by $Author: dom $

URL: http://www.w3.org/QA/2002/04/valid-dtd-list.html

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