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World Wide Web Consortium (W3C)
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web …
The W3C Markup Validation Service
W3C’s easy-to-use markup validation service, based on SGML and XML parsers.
Home | Web Accessibility Initiative (WAI) | W3C
W3C. The World Wide Web Consortium (W3C) develops international standards for the Web: HTML, CSS, and many more.
Web Accessibility Evaluation Tools List
WCAG 2.0 — W3C Web Content Accessibility Guidelines 2.0 (132 tools) … http://www.boia.org?wc3, Version: Version 5 Release 3.4, Released: 2014-Nov-13.
About W3C
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web …
Character Entity Reference Chart
	, , , CHARACTER TABULATION. 
, , , LINE FEED (LF) ! !, !, !, EXCLAMATION MARK.
HTTP/1.1: Status Code Definitions
There are no required headers for this class of status code. Since HTTP/1.0 did not define any 1xx status codes, servers MUST NOT send a 1xx response to an HTTP …
W3Schools Online Web Tutorials
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, …
World Wide Web Consortium – Wikipedia
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 and currently led by Tim …
The W3C CSS Validation Service
Validate by URI. Enter the URI of a document (HTML with CSS or CSS only) you would like validated: Address: More Options …
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