Download and compare HTML and XHTML DTDs by generating unique content rule and element declarations for any two versions.

Delve into the document-based structural issues addressed by XHTML, and considering applications for graphical images and cross-browser compatibility.

Alan Richmond with the Web Developers Virtual Library explains the differences between XHTML and HTML 4, covering elements and attribute values.

Identify differences between XHTML and its predecessor, such as closing and implied tags, document declarations, and quoted attributes.

Note the effects of modularity on standard HTML, as well as SSI and CSS. Programming rules cover directory content and WYSIWYG code generation.

Developers familiar with this HTML extension can explore style sheet usages and font tag complications, while newcomers can discover how to convert existing syntax.

Corporate content providers, browser developers, and Web standards groups voice in on official adoption of XHTML as a boon to scalability.

Learn how modularization of XHTML code raises the level of abstraction in programming to define schemas without redundancy.

Sort a chart of XHTML tags by name or function, and reference actions executed as well as Netscape and Internet Explorer browser compatibility.

Verify semantic and syntactic understanding of XHTML documents via this 20-question exam, focusing on the languages place in Web design, and tag requirements.

Provides an overview of the latest developments with the reformulation of HTML 4.0.

Explore both sides of the arguments for modularizing XML with a single or three-DTD set, balancing more explicit semantics with scaled down syntax.

Navigate an alphabetical list of XHTML elements to access relevant attributes, in addition to parent and child functions and languages.