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CSS image replacement is a Web design technique that uses Cascading Style Sheets to replace text on a Web page with an image containing that text. It is intended to keep the page accessible to users of screen readers, text-only web browsers, or other browsers where support for images or style sheets is either disabled or nonexistent, while allowing the image to differ between styles.
Style may be chosen specifically for a piece of content, see e.g., color; scope of parameters. Alternatively, style is specified for CSS selectors, expressed in terms of elements, classes, and ID's. This is done on various levels: Author style sheets, in this order: Note: See WP:CLASS for a list of all the style sheets loaded.
One may also have the style depend on the value of an attribute, e.g. with the selectors: : link [title = "User:''username''"]: link [title = "''pagename''"]: link [href = "''full url ''"] to color-code or highlight particular users (including oneself) and/or links to particular pages (like the bolding of watched pages on Recent Changes).
When adding an image to an infobox, thumbnails should NOT be used. Infobox templates should implement the InfoboxImage module to help with formatting of images so simply supplying the file name will work. For example, to use File:Image PlaceHolder.png, you can simply use |image=Image PlaceHolder.png.
Moreover, it allows users with very specific needs to change the color schemes in their own style sheet (Special:MyPage/skin.css, or their browser's style sheet). For example, a style sheet at Wikipedia:Style sheets for visually impaired users provides higher contrast backgrounds for navboxes. The problem is that when the default site-wide ...
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 ...
For example, should be using a background of F6D4E6 (the color of the body in File:Pink Panther.png) rather than E466A9 (the color of the background in that image). A representative color useful in a navbox is often already present in an article's infobox (if included), and these are sometimes specified programmatically.
In some uses, hexadecimal color codes are specified with notation using a leading 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 within the sRGB gamut, and 16,777,216 colors that may be so specified.