Welcome
Xhtml Rules
Agenda I
DocType
XHTML Terms
XHTML Structure
Meta Tags
Headings
Lists
Text Format
Font Attributes
Quotations
Horizontal Rule
Special Entities
Hex Colors
Web Safe Colors
Tag Review
Project I
Anchor Tag
Linking Tips
Animated Gifs
Insert Images
Image Files
Image Attributes
Image Links
Embed MPGs
Sound Files
Sound Attributes
Multimedia
Web Resources
Project II
Final Check
Course Review

HTML Document Type Declaration - DTD

Doctype declaration must appear at the top of the document to tells the browser which version of HTML or Xhtml is used and how to display the page. Other versions may include HTML 4.01 or Xhtml 1.0. This description is placed before the <html> tag or the first line on the page. The doctype is required to validate the document for the correct syntax. W3C HTML Validation Service - http://validator.w3.org/ XHTML 1.0 transitional is the version used in these courses.
HTML 4.01 Strict
Describes the structural portions of HTML 4.01 and does not provide any frame-related markup.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN" "http://www.w3.org/TR/html4/strict.dtd">

HTML 4.01 Transitional
The 4.01 Trasitional or loose version declares the document includes the presentation markup elements including <B> and <FONT> but does not include frame-related markup.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/Rec-html40/loose.dtd">
HTML 4.01 Framset
Is the same as HTML 4.01 Transitional plus adds description for frameset markup.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
Xhtml DTD References:  W3C Doctype Description