The accesskey attribute sounds like a great idea at first. Being able to attach a keyboard shortcut to elements in an HTML document allows users to quickly jump to different parts of the page or trigger functionality without having to use a mouse.
The problem, as has been stated by Derek Featherstone in More reasons why we don’t use accesskeys, John Foliot in Using Accesskeys - Is it worth it?, and Jukka Korpela in Using accesskey attribute in HTML forms and links, to name a few, is that most current web browsers do not prevent shortcuts assigned
We've provided examples below that show that CSE HTML Validator can find problems and issues that other syntax checkers and validators (such as the popular W3C HTML Validator) cannot find. The testing was done with recent versions of CSE HTML Validator. Validate the source HTML document using the W3C HTML Validator and see how many problems/issues it misses (it misses ALL of them as of July 9, 2007). Even with all these issues, the W3C validator says that you may want to place an icon on your page to show your readers that you've taken the care to
HTML —which is short for HyperText Markup Language— is the official language of the World Wide Web and was first conceived in 1990. HTML is a product of SGML (Standard Generalized Markup Language) which is a complex, technical specification describing markup languages, especially those used in electronic document exchange, document management, and document publishing. HTML was originally created to allow those who were not specialized in SGML to publish and exchange scientific and other technical documents. HTML especially facilitated this exchange
The essence of an HTML document lies in the first two words: (H)yper(T)ext. In other words, it is the ability to link to other documents that makes HTML unique. How do HTML documents link to other documents? It does so via the <a> tag. The attributes for the <a> tag are href and name. Below we show an example for each:
Example 1: Link to an external document.
HTML:
<a href="sample.html">This link</a> takes you to
source :
There are four official levels, or versions of HTML conformance. Each encompasses a set of tags and higher levels include tags from all those below it.
Level 0
The minimum tags which constitute an HTML document (most tags currently in use). Level 0 tags are usually rendered consistently from browser to browser.
Level 1
Level 0 tags plus tags for highlighting (also called Logical Tags) and images
Level 2
Level 0 and Level 1 tags plus form tags
Level 3 (Version 3.2)
Previous levels plus support for client-side image maps and scripts, and table
In this chapter, we discuss how HTML documents are represented on a computer and over the Internet.
The section on the document character set addresses the issue of what abstract characters may be part of an HTML document. Characters include the Latin letter "A", the Cyrillic letter "I", the Chinese character meaning "water", etc.
The section on character encodings addresses the issue of how those characters may be represented in a file or when transferred over the Internet. As some character encodings cannot directly represent all characters an
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