There are numerous Markup Languages. HyperText Markup Language (or, HTML) has six (6) versions of which HTML 4.01 and HTML 5 are presently being and are most widely used. xHTML 1.0 with a text/html content-type is considered part of the HTML group because it does not use the XML content-type; and, consequently, has been included in these articles. XML is an Extensible Markup Language; it is not included.
HTML Articles
A Directory of articles related to the Best Practices of HTML
HTML has three (3) sets of markup types—structural, presentational and hypertext—which are used in the process of web development.
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And All That HTML5 Malarkey
A case study wherein Andy Clarke's “And All That Malarkey” XHTML undergoes six interations before it becomes HTML5 compliant.
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HTML and XHTML are Identical in HTML5
The WHAT WG has devised a simple method of document handling which mutes the argument between use of HTML 4.01 or XHTML 1.0.
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HTML5 Anchor Difference
A small difference between HTML 4.01 and HTML 5 as regards anchors, significant text and embedded content.
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HTML5 Doctype is Unrecognized
Web Application 1.0 (or, HTML5) has simplified the Document Type Declaration whereby it renders web pages in standards-compliant mode, does not require definition and is unrecognizable.
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They aren't HTML5 docs in the first place
Document Type Delcaration (DTDs) are incidental elements when validation efforts are performed. Validation occurs from valid content: markup languages and stylesheets. Occasionally, valid content will be HTML, XHTML and HTML compliant regardless of which.
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HTML5 Image Difference
A small difference between HTML 4.01 and HTML 5 as regards images and embedded content.
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The Most Common HTML Markup Errors
The most common and prevalent errors found in HTML Markup code of sites which participated in CSS Reboot Spring 2006.
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WHAT Working Group boils Ocean!
The Web Hypertext Application Technology (WHAT) Working Group (WG) Mailing List has this thread. Everyone should read this thread. It's titled “HTML5 should allow for the empty element syntax.” It's very informative.
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Why do You use HTML 4?
Web developer replies from a small questionnaire sent to CSS Reboot Spring 2006 participants and commenter's on 456 Berea Street regarding the use of HTML 4.01 on their sites.
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HTML5 and http-equiv Difference
An article regarding one difference - http-equiv - between HTML 4.01 and HTML 5 which concludes with <meta http-equiv="imagetoolbar" content="no"> and its deprecation by HTML 5.
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The Philosophy of HTML 5 as Explained by Ian Hickson
The Philosophy of HTML 5 as Explained by Ian Hickson.
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Why Use HTML 5?
The purpose of this article regards using WHAT WG HTML 5 (as it existed on January 24, 2007) which includes a selected History Lesson as to how it originated and what may occur.
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(X)HTML5 Character Encoding
Ian Hickson offers clarification regarding a present-day misconception of the (X)HTML5 speicification's allowance for UTF-8 character sets only.
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Yahoo! recommends HTML 4
The Yahoo! Developer Network offers its recommendation that all sites should be constructed with HTML 4.01/Strict for rendering standards mode in user agents.
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Why XHTML™?
Which DTD should be used? Persuasive arguments abound. This article represents a less academic resolution of this web standards conundrum.
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XHTML's Gift
An Introductory Article regarding websites that use HTML 4.01.