What Does Extensible Hypertext Markup Language (XHTML) Mean?
Extensible hypertext markup language (XHTML) is a hybrid language between XML and HTML and is also an accepted standard in the coding world.
It is similar to HTML 4.01 and is considered as HTML defined as an application of XML. Unlike HTML, XHTML pages have a strict syntax and needs to be well formed in order to be parsed using XML parsers, unlike the more lenient HTML specific parsers.