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What does html5 use to define document types?
- 青灯夜游Original
- 2022-01-11 15:49:033994browse
In HTML5, use the doctype declaration to define the document type, and the syntax is "8b05045a5be5764f313ed5b9168a17e6". DOCTYPE is a document type tag, which is a document type declaration of a standard universal markup language. It is used in web design to indicate what version of XHTML or HTML you are using.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
In HTML5, use the doctype declaration to define the document type.
DOCTYPE is the abbreviation of document type.
DOCTYPE is a document type tag, which is a document type declaration of a standard universal markup language. It is used in web design to indicate what version of XHTML or HTML you are using.
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>文档标题</title> </head> <body> 文档内容...... </body> </html>
The DOCTYPE declaration must be the first line of the HTML document, before the 100db36a723c770d327fc0aef2ce13b1 tag.
Note:
In HTML 4.01, the 1a309583e26acea4f04ca31122d8c535 declaration references a DTD because HTML 4.01 is based on SGML. A DTD specifies the rules for a markup language so that browsers can render content correctly.
HTML5 is not based on SGML, so there is no need to reference a DTD.
There are three types of 1a309583e26acea4f04ca31122d8c535 declarations in HTML 4.01. There is only one in HTML5:
<!DOCTYPE html>
Comment:
- ##1a309583e26acea4f04ca31122d8c535 tag has no closing tag.
- 1a309583e26acea4f04ca31122d8c535 The declaration is not case-sensitive.
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