XHTML is currently the most widely used standard for websites on the internet, despite the fact that the new standard, [[HTML5]], is available. XHTMLHTML5 can support different browsers, like [[Internet Explorer 9]], [[Google Chrome]], [[Firefox|Mozilla Firefox]], [[Opera (web browser)|Opera]] and [[Safari (web browser)|Safari]]. It can support all browsers run on mobile phone and other similar small devices. Small devices often cannot interpret the bad HTML. XHTML is a family of current and future document types and modules that reproduce, subset, and extend HTML 4.<ref>http://www.w3.org/TR/2002/REC-xhtml1-20020801/</ref> It extends HTML 4 by utilizing Extensible Markup Language (XML), which is a language that is designed to carry data, not display it.<ref>http://www.w3schools.com/xml/xml_whatis.asp</ref> By combining HTML with XML it retains the flexibility of HTML but allows for cleaner, well-formed coding. What this means is that a web page can now have dynamic, interactive content as XHTML is actually an XML application.
