Contents
Viewing Markup with a Web Server
HTML and XHTML: Version History
HTML and XHTML DTDs: The Specifications Up Close
Document Type Statements and Language Versions
The Doctype Switch and Browser Rendering Modes
HTML Is Not Case Sensitive, XHTML Is
Attribute Values May Be Case Sensitive
(X)HTML Is Sensitive to a Single Whitespace Character
(X)HTML Follows a Content Model
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