What is the definition of XHTML?

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Html is a language upgrade based on xhtml extensible tag language based on the standard general tag (tag) language.

XHTML definition:

XHTMl text markup language, which aims to replace html, has a stricter syntax than html and is more closely integrated with xml.

Understanding: marking with words and letters has more advantages than html

The difference between Xhtml and html:

Xhtml is the heir to html

Html requirements are loose, and it is difficult for machines to deal with.

Xhtml complies with DTD (document type definition) and is easier to handle by machines.

Xhtml is supported by most browsers, and html by all browsers.

Xhtml for html, the change is relatively small, in line with xml, the marking requirements are even higher.

All tags in Xhtml are lowercase, while html (both uppercase and lowercase) officially requires uppercase.

All parameters of Xhtml must be enclosed in quotation marks. Parameters and attributes in html can be enclosed without quotation marks.

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