XHTML - Extensible Hypertext Markup Language
XHTML is a markup language written in XML; therefore, it is an XML application.
XHTML uses three XML namespaces (used to qualify element and attributes names by associating them with namespaces identified by URI references. Namespaces prevent identically custom-named tags that may be used in different XML documents from being read the same way), which correspond to three HTML 4.0 DTDs: Strict, Transitional, and Frameset.
XHTML markup must conform to the markup standards defined in a HTML DTD.
When applied to Net devices, XHTML must go through a modularization process. This enables XHTML pages to be read by many different platforms.
A device designer, using standard building blocks, will specify which elements are supported. Content creators will then target these building blocks--or modules.
Because these modules conform to certain standards, XHTML's extensibility ensures that layout and presentation stay true-to-form over any platform.
Learn about each of the five generations of computers and major technology developments that have led to the current devices that we use today. Read More »Cloud Computing Market Leaders, 2015
If not for AWS, Microsoft would dominate the cloud. The race to capture market share will grow ever more fierce in the years ahead. Here's a look... Read More »OpenStack Brings Liberty to the Cloud
Massive changes set to come to the cloud as Big Tent model lands in widely deployed cloud platform used by Walmart, Comcast, AT&T, Time Warner... Read More »
From wacky alarm clocks to lecture hall tools and after class entertainment, these Android apps are a good fit for a student's life and budget. Read More »Network Fundamentals Study Guide
A network is a group of two or more computer systems or devices, linked together to share resources, exchange files and electronic communications.... Read More »Computer Architecture Study Guide
This Webopedia study guide describes the different parts of a computer system and their relations. Read More »
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
- Watch Datamation's editor James Maguire moderate roundtable discussions with tech experts from companies such as Accenture, Dell, Blue Jeans Network, Microsoft and more »