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Default CSS behavior for XHTML processing The Toolkit CSS stylesheet file resource/commonltr.css is copied to the output directory when you process to a target that creates XHTML output. All the generated XHTML output files include a link like the following that references the default CSS file: <link rel="stylesheet" type="text/css" href="..
This specification defines Cascading Style Sheets, level 2 revision 1 (CSS 2.1). CSS 2.1 is a style sheet language that allows authors and users to attach style (e.g., fonts and spacing) to structured documents (e.g., HTML documents and XML applications). By separating the presentation style of documents from the content of documents, CSS 2.1 simplifies Web authoring and site maintenance. CSS 2.1 builds on CSS2 [CSS2] which builds on CSS1 [CSS1] . It supports media-specific style sheets so that authors may tailor the presentation of their documents to visual browsers, aural devices, printers, braille devices, handheld devices, etc.
Web colors are colors used in designing web pages, and the methods for describing and specifying those colors. Colors may be specified as an RGB triplet or in hexadecimal format (a hex triplet ). They may also be specified according to their common English names in some cases. Often a color tool or other graphics software is used to generate color values. Hexadecimal color codes begin with a number sign (#). [ 1 ] [ 2 ] A color is specified according to the intensity of its red, green and blue components, each represented by eight bits . Thus, there are 24 bits used to specify a web color, and 16,777,216 colors that may be so specified.