XHTML stands for Extensible Hypertext Markup Language. It is a stricter and more XML-based version of HTML, designed to be more compatible with XML standards. XHTML is used for creating web pages and applications that require well-formed and structured code to ensure consistency and compatibility across different platforms and devices.
HTML is in XHTML, some argue that XHTML is it's own markup
Extensible HyperText Markup Language
XHTML is used as a stricter view of HTML. People who like to make the code clean and nice use XHTML.
The XHTML code for links is anchor tag.It is used to establish hyperlink between two pages.
HTML and XHTML are two different languages used for web and application design. XHTML was a popular choice from about the year 2000, to 2011. HTML 5 is intended to replace XHTML. XHTML followed the basic rules of XML-based languages. HTML (both prior and since) do not.
XHTML can be used to create full and feature-rich websites; any type of website that you could build in HTML4 (except for those using frames) are technically possible in XHTML.
(1) XHTML 1.0 Strict(2) XHTML 1.0 Transitional(3) XHTML 1.0 Frameset
The World Wide Web Consortium, or the W3C. They set the standards and specifications of HTML and XHTML, and how it should be used.
That is what seems to be happening already. XHTML is being used more than normal HTML for modern websites, since it forces better cross-browser compatibility -- meaning that multiple browsers viewing the same page should see the same thing. HTML may never fully take over XHTML; however, at this rate, XHTML will be the markup language most commonly used for webpages.
XHTML and CSS are both languages that are used to make web pages. XHTML is very similar to HTML and serves the same purpose. XHTML & HTML are both used to set the structure of the page - to define images, links, text, headlines, etc. CSS (Cascading Style Sheets) is used to define the style of the page - colors, spacing, etc. If you were to think of a web page as a person, XHTML would be the skeleton, and CSS would be the skin, clothing, make-up, etc.
Many modern websites use XHTML now; although some are still left in the dark, pondering with HTML. Thus, many corporations, businesses, organizations, freelancers, entertainers, general website developers, and others use XHTML.
The currently used ones are HTML 4.01, XHTML 1.0 or 1.1, and HTML5. XHTML has several doctypes available, which are sorta like mini-versions.