Doctype
Un doctype (contraction de l'anglais document type, littéralement « type de document ») est une instruction au début des documents SGML et XML (co…
Un doctype (contraction de l'anglais document type, littéralement « type de document ») est une instruction au début des documents SGML et XML (comme les pages web[1]) spécifiant sa DTD : les règles de sa syntaxe.
Syntaxe
<!DOCTYPE root-element SYSTEM "URL(URI)">
<!-- déclarations -->
Exemples
HTML 4
La déclaration contenue dans l'exemple suivant réfère à HTML 4 :
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
Le doctype est toujours le même[2] :
<!DOCTYPE html>
La déclaration contenue dans l'exemple suivant réfère à XHTML :
<?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">
XHTML pour mobiles
<!DOCTYPE html PUBLIC
"-//WAPFORUM//DTD XHTML Mobile 1.0//EN"
"http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
Références
- (en) « Recommended list of Doctype declarations », W3C Quality Assurance
- ↑ « Quel DOCTYPE choisir? », XUL.
- ↑ (en) « HTML <!DOCTYPE> Declaration », W3Schools.com.
Voir aussi
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