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  2. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    This CAPTCHA (Version 1 [clarification needed]) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient. A CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot ...

  3. Document Object Model - Wikipedia

    en.wikipedia.org/wiki/Document_Object_Model

    v. t. e. The Document Object Model ( DOM) is a cross-platform and language-independent interface that treats an HTML or XML document as a tree structure wherein each node is an object representing a part of the document. The DOM represents a document with a logical tree. Each branch of the tree ends in a node, and each node contains objects.

  4. Web Accessibility Initiative - Wikipedia

    en.wikipedia.org/wiki/Web_Accessibility_Initiative

    Web Accessibility Initiative. The World Wide Web Consortium (W3C)'s Web Accessibility Initiative ( WAI) is an effort to improve the accessibility of the World Wide Web for people with disabilities. People with disabilities encounter difficulties when using computers generally, but also on the Web.

  5. reCAPTCHA - Wikipedia

    en.wikipedia.org/wiki/ReCAPTCHA

    reCAPTCHA Inc. [1] is a CAPTCHA system owned by Google. It enables web hosts to distinguish between human and automated access to websites. The original version asked users to decipher hard-to-read text or match images. Version 2 also asked users to decipher text or match images if the analysis of cookies and canvas rendering suggested the page ...

  6. Help:HTML in wikitext - Wikipedia

    en.wikipedia.org/wiki/Help:HTML_in_wikitext

    The MediaWiki software, which drives Wikipedia, allows the use of a subset of HTML 5 elements, or tags and their attributes, for presentation formatting. But most HTML can be included by using equivalent wiki markup or templates; these are generally preferred within articles, as they are sometimes simpler for most editors and less intrusive in the editing window; but Wikipedia's Manual of ...

  7. Comparison of wiki software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_wiki_software

    No, intended for personal use only No, intended for personal use only Yes Yes, themes, user CSS, modules Yes Tiki Wiki CMS Groupware: Yes Yes, CAPTCHA for registration and anonymous edits or comments, encrypted email addresses. Yes Yes themes, user CSS, modules Yes Trac: Yes Yes Yes Yes Yes, templates and themes, html and css Yes Traction TeamPage

  8. Help:Markup validation - Wikipedia

    en.wikipedia.org/wiki/Help:Markup_validation

    Help:Markup validation. H:MARKV. The W3C Markup Validation Service lets editors check web pages for conformance to HTML and XHTML standards. It is helpful for catching minor problems such as duplicate section names or citation IDs. Although most major browsers will tolerate many of the errors, and will display a document successfully even if it ...

  9. CSS - Wikipedia

    en.wikipedia.org/wiki/CSS

    e. Cascading Style Sheets ( CSS) is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML ). [1] CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.