Differences between HTML, shtml, and XHTML

HTML is a hypertext markup language. Based on WWW, HTML is a static page format and does not need to be parsed by the server. The format requirements are not strict.

For example, <u> the browser does not know the Terminator.

Shtml-basedServer Side Include (SSI),When a server-side executable script is used as a dynamicProgramming LanguageYou can include it. It is no different from HTML when it does not contain server scripts.

The basic W3C standard of XHTML follows strict XML format. It can be considered as a transition from HTML to XML with strict syntax format requirements.

XHTML <p> must have </P> terminator (all elements must be disabled)

XHTML <p> <strong> </P> (correct nesting)

The XHTML attribute must be enclosed in double quotation marks.

XHTML is case sensitive. The attributes and values of tags are all in lowercase.

XHTML uses ID to replace the name attribute