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Because the semantic file contains only the meanings an author intends to convey, the styling of the various elements of the document's content is very consistent. For example, headings, emphasized text, lists and mathematical expressions all receive consistently applied style properties from the external style sheet.
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 ...
Dynamic styles are a key feature of DHTML. By using CSS, one can quickly change the appearance and formatting of elements in a document without adding or removing elements. This helps keep documents small and the scripts that manipulate the document fast. The object model provides programmatic access to styles.
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.
The document body can be likened to the body of a HTML document, where one specifies the content and the structure of the document, whereas the preamble (and the style sheets) can be likened to the CSS portion of a HTML document, where the formatting, document specifications and other visual attributes are specified.
By default, English Wikipedia articles state explicitly to the browser that they are written wholly in English. Text in a language other than English should be tagged as such, typically with a template like {} (or one of its derivatives). This wraps the text in an IETF language tag, which specifies the language and script. For example:
Download as PDF; Printable version; ... Topics include HTML5, JavaScript, CSS, Web APIs ... Text is available under the Creative Commons Attribution-ShareAlike 4 ...
An XSL-FO document is not like a PDF or a PostScript document. It does not definitively describe the layout of the text on various pages. Instead, it describes what the pages look like and where the various contents go. From there, an FO processor determines how to position the text within the boundaries described by the FO document.