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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.
MediaWiki:Common.css: image Interface class used for links to images. ? includes/Linker.php: imbox, imbox-* Image pages message box template styles. See also mbox-text etc. below. MediaWiki:Common.css {} meta-template that is used to create most image message boxes. interwiki-xx
The text in the alt attribute is used to replace the image when the image cannot be loaded, without changing the intended meaning of the page's contents. [8] The W3C's web content accessibility guidelines state that the alt attribute is used to convey the meaning and intent of the image, rather than being a literal description of the image ...
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 ...
Sites that use CSS with either XHTML or HTML are easier to tweak so that they appear similar in different browsers (Chrome, Internet Explorer, Mozilla Firefox, Opera, Safari, etc.). Sites using CSS " degrade gracefully " in browsers unable to display graphical content, such as Lynx , or those so very old that they cannot use CSS.
Semantic HTML is a way of writing HTML that emphasizes the meaning of the encoded information over its presentation (look). HTML has included semantic markup from its inception, [85] but has also included presentational markup, such as < font >, < i > and < center > tags. There are also the semantically neutral div and span tags.
Before tableless web design, sliced images were held together precisely with html tables. Modern interactive page layout includes extensive use of Cascading Style Sheets (CSS) and semantic markup . Tables may be used for compatibility with rarer older web browsers that are incapable of processing modern tableless coding accurately.
Web pages created according to the principles of progressive enhancement are by their nature more accessible, [27] backwards compatible, [6] and outreaching, because the strategy demands that basic content always be available, not obstructed by commonly unsupported or scripting that may be easily disabled, unsupported (e.g. by text-based web browsers), or blocked on computers in sensitive ...