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  2. CSS - Wikipedia

    en.wikipedia.org/wiki/CSS

    To demonstrate specificity Inheritance Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate. Inheritance is the mechanism by which properties are applied not only to a specified element but also to its descendants. Inheritance relies on the document tree, which is the hierarchy of XHTML elements in a page based on nesting. Descendant elements may ...

  3. Style sheet language - Wikipedia

    en.wikipedia.org/wiki/Style_sheet_language

    Also, values can be lists or expressions involving several of the aforementioned values. A typical value in a visual style sheet is a length; for example, "1.5em" which consists of a number (1.5) and a unit (em). The "em" value in CSS refers to the font size of the surrounding text. Common style sheet languages have around ten different units.

  4. HTML - Wikipedia

    en.wikipedia.org/wiki/HTML

    HTML markup consists of several key components, including those called tags (and their attributes), character-based data types, character references and entity references. HTML tags most commonly come in pairs like < h1 > and </ h1 >, although some represent empty elements and so are unpaired, for example < img >.

  5. CSS code - Wikipedia

    en.wikipedia.org/wiki/CSS_code

    CSS code. 2 languages. Français; ... constructed from classical codes with some special properties. An example of a CSS code is the Steane code. Construction

  6. CSS box model - Wikipedia

    en.wikipedia.org/wiki/CSS_box_model

    The Cascading Style Sheets (CSS) specification describes how elements of web pages are displayed by graphical browsers. Section 4 of the CSS1 specification defines a "formatting model" that gives block-level elements—such as p and blockquote—a width and height, and three levels of boxes surrounding it: padding, borders, and margins. [4]

  7. div and span - Wikipedia

    en.wikipedia.org/wiki/Div_and_span

    Another example is the Ajax programming technique, where, for example, clicking a hypertext link may cause JavaScript code to retrieve the text for a new price quotation to display in place of the current one within the page, without re-loading the whole page. When the new text arrives back from the server, the JavaScript must identify the ...

  8. Document Object Model - Wikipedia

    en.wikipedia.org/wiki/Document_Object_Model

    In HTML DOM (Document Object Model), every element is a node: [4] A document is a document node. All HTML elements are element nodes. All HTML attributes are attribute nodes. Text inserted into HTML elements are text nodes. Comments are comment nodes.

  9. Web colors - Wikipedia

    en.wikipedia.org/wiki/Web_colors

    CSS 1–2.0, HTML 3.2–4, and VGA color names Name ... Each color code listed is a shorthand for the RGB value. For example, code 609 is equivalent to RGB code 102-0 ...