Divitis
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Back to "Web development"Divitis (in an educated manner from the HTML element "<div/> "and the Greek suffix "- itis ", which refers to an inflammatory illness) describes the excessive or nearly exclusive use of the generic, semantically insignificant HTML elements within the range "of the Webauthorings ""<span/> "and "<div/> "for the structuring of text contents. The term became 2003 by Jeffrey Zeldmans book "Designing With Web standard "(ISBN 0735712018) admits.
Meaning of the term
The underlying model however, which the term designates "Divitis ", emerged already for instance with the publication of the HTML-4.0-Standards on the part of the W3C in the year 1997, which introduced the strict separation between honor (HTML) and presentation logic (CSS) with Stylesheets. Instead of far before wide-spread the abuse of HTML elements as "<table/> "(only serves the honor of tabular data) or "<blockquote/> "(only serves the honor of longer quotations) for representation purposes to be operated, ignored numerous HTML authors in addition to seize and format with CSS all contents into the generic elements "<div/> "(for elements, which are to produce their own text block) and "<span/> "(for elements within the text river) - and a behavior to thus partly copy, whatever HTML would carry out completely with meaningful honor of text contents without CSS.
Instead of distinguishing thus for instance headings as such - in HTML for this the elements serve "<h1/> "to "<h6/> "depending upon weight of the heading - the same were seized in a classical case of "Divitis "in "<div/> ", which addressable by "an ID was made "- or "class "- attribute and formatted by means of CSS. In the following in shape of a complete HTML document a somewhat more extensive example:
Typical example of "Divitis "
<! DOCTYPE HTML PUBLIC "- //W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd " > <html> <head> <title>Typischer case of "Divitis "</title> </head> <body> <div id= " Ueberschrift_1 " first Ordnung</div> <div class= " paragraph " >Lorem ipsum dolor sit amet, more consectetuer adipiscing elit, sed diam nonummy nibh euismodtincidunt ut laoreet dolore magna aliquam erat volutpat.</div> <div class= " Ueberschrift_2 " >Navigation</div> <div id= " list " > <span class= " LINE " ><a href=" /foo " >Link 1</a></span><br> <span class= " LINE " ><a href=" /bar " >Link 2</a></span><br> <span class= " LINE " ><a href=" /baz " >Link 3</a></span> </div> <div class= " Ueberschrift_2 " second Ordnung</div> <div class= " paragraph" >Lorem ipsum dolor sit amet, more consectetuer adipiscing elit, sed diam nonummy nibh euismodtincidunt ut dolore laoreet magna aliquam erat volutpat.</div> </body> </html>
Above example structures meaningful
<! DOCTYPE HTML PUBLIC "- //W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd " > <html> <head> <title>Sinnvoll structured HTML</title> </head> <body> of first Ordnung</h1> <p>Lorem ipsum dolor sit amet, more consectetuer adipiscing elit, sed diam nonummy nibh euismodtincidunt ut laoreet dolore magna aliquam erat volutpat.<p> <h2>Navigation</h2> <ol> <li><a href=" /foo " >Link 1</a></li> <li><a href=" /bar " >Link 2</a></li> <li><a href=" /baz " >Link 3</a></li> </ol> of second Ordnung</h2> <p>Lorem ipsum dolor sit amet, more consectetuer adipiscing elit, sed diam nonummy nibh euismodtincidunt ut laoreet dolore magna aliquam erat volutpat.</p> </body> </html>
Problem "of the Divitis "
By the abuse of unsuitable elements as "<table/> "or "<blockquote/> "caused problems, approximately regarding the accesibility of Web documents, were only isolated solved by this new paradigm not or, were not partly even intensified.
The Client, that HTML contents calls - beside "conventional "Webbrowsern can do this also screen readers, Braillezeilen or for instance Suchmaschinen Bots its - white in case of one "<h1/> up "- element around the semantic meaning of its contents and can it according to weiterverabeiten; thus graphic Browser will represent the text of the heading significantly more largely as the flow text, to screen readers become when reading out the heading more stress into the voice to put and the algorithm of a search machine becomes considerably higher text contents of the element weights than normal flow text. "<div/> "- element however meets no statement concerning the meaning of its contents and corresponds to the complete absence of an honor.
Related links
"Www horror cabinet: Div soup "
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