MediaWiki

Handbuch:Oberfläche/Stylesheets

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MediaWiki:Common.css ist ein Cascading Style Sheet, das nach dem Stylesheet des aktiven Skin geladen wird. Dieses Stylesheet wird mit allen Skins geladen und ein ähnliches, für das Skin spezifisches Stylesheet mit dem Namen "MediaWiki:skinname.css" wird daran angehängt (siehe unten). Obwohl auf Special:AllMessages nur Monobook.css aufgeführt ist, funktionieren die anderen Skin-spezifischen Stylesheets trotzdem.

Wenn $wgAllowUserCss auf true gesetzt ist, können Benutzer die Benutzeroberfläche nur für sich selbst anpassen, indem sie Benutzer-Unterseiten mit Titeln in Kleinbuchstaben erstellen (siehe unten).

Globale Stylesheets werden nicht auf speziellen eingeschränkten Seiten wie Anmeldung oder Einstellungen geladen, es sei denn, Sie aktivieren $wgAllowSiteCSSOnRestrictedPages .

Sie werden auch nicht geladen, wenn safemode verwendet wird.

Liste der Stylesheets

Globale Stylesheets

Diese Stylesheets wirken sich auf alle Benutzer des Wikis aus, je nachdem, welchen Skin sie verwenden, welche Benutzergruppe sie haben usw.


Persönliche Stylesheets

Das sind Stylesheets, die nur Sie selbst und Benutzer mit der Berechtigung editusercss , in der Regel Schnittstellenadministratoren, bearbeiten können.

Bei widersprüchlichen Stileinstellungen für einen Inhalt hängt die resultierende Einstellung in erster Linie von der spezifischen Bedeutung ab. For two rules of the same specificity, it depends on order between and within stylesheets: the last wins. See also cascading order. The order can be overriden with the indication "!important", but this should generally be avoided.

CSS Selektoren

In the Monobook skin, the CSS selectors relevant for the style of the page body include the following. As far as possible, examples are given, which show the result for the current style settings:

  • :link – unvisited link – example: help:index ; default: help:index
  • :visited – visited link
  • :link#contentTop
  • :link.external – http://example ; default: http://example
  • :link.extiw – interwiki link in page body –  ; default: en:example [1]
  • :link.image – link from full image to image description page
  • :link.internal – link to file itself (Media:), and links from thumbnail and magnifying glass icon to image description page (note that color and font size specified for a.internal are only applicable in the first case) – Media:example.png
  • :link.new – doesnotexist ; default: doesnotexist
  • .allpagesredirect – abc – redirects in Special:Allpages and Special:Prefixindex
  • body.ns-0, ..., body.ns-15 (namespaces)
  • div#bodyContent
  • div#column-content
  • div#editsection
  • div#globalWrapper
  • div#tocindent
  • div.tocline
  • h1.firstHeading
  • h2
  • h3
  • small – example
  • table.toc
  • :link and :visited – It's a common mistake to use "a" instead of ":link" or ":visited" to style links (unvisited and visited, respectively). Whereas later pseudoclasses apply only to links, "a" applies to both links and named anchors (e.g. <a name="bookmark">).
  • #p-lang a – for interlanguage links

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).

See also Help:Watching pages#CSS

The watchlist and Recent Changes use two classes:

  • .autocomment
    example
  • .new (see below)

The page history has classes autocomment and:

  • .user
  • .minor

Thus the font specified for user applies in the page history, but not in the watchlist or Recent Changes.

Edit page

  • Edit box: textarea#wpTextbox1
example1
  • Edit summary box: input#wpSummary
example2

Non-display

One extreme "style" for a text is "display:none;", i.e., not displaying it, e.g.

p<span style="display:none;">q</span>r gives pqr

To allow a text to optionally have this style, specify a class or id for it; a user who wants to hide it can then correspondingly specify in their personal CSS:

.classname {display: none;} or #id {display: none;}

Non-displayed links do not work, as opposed to links in a very small font, compare:

p<span style="display:none;">[[q]]</span>r gives pqr
p<small><small><small><small><small>[[q]]</small></small></small></small></small>r gives pqr

It cannot be used to remove text in expressions for template names, parameter names, parameter values, page names in links, etc.

While "display: none;" produces nothing, "visibility: hidden;" produces blank spaces replacing the content; its opposite is "visibility: visible;".

Example:

p<span style="visibility: hidden;">q</span>r gives pqr

Try inspecting the page with the Developer tools probably provided with your browser to find the hidden element.

If you would like to view the hidden text, you could use an add-on for your browser. For example, the Web Developer add-on is available for Firefox and Chrome. You could add it to your browser and then choose Misc. -> Display Hidden Elements in that toolbar, to make all hidden elements appear.

Non-print

One can exclude content from being printed (if the browser supports CSS) by declaring the content to be of the "noprint" class: 

<div class="someclass noprint">This will not appear in the print version.</div>

Style depending on a parameter or variable

Variable class or ID

A class or ID can depend on the result produced by a template or on a template parameter, e.g., class="abc{{{1|def}}}". For one or more of the possible class names, the style of that class can be defined. If the class is undefined it is ignored, so the standard style is used.

In the simplest case, we have e.g., class="abc{{{1}}}" and define class abcdef. If the parameter value is "def", it applies.

If a page for general use only makes sense when styles are defined for certain classes, then these have to be specified in the page MediaWiki:Common.css, which applies for all users and all skins, as far as not overridden.

Variable style parameter value

Wikitext like 

<span style="display:{{{3|none}}}">Wed</span>

displays "Wed" if parameter 3 is defined, but its value is not "none", and displays nothing if parameter 3 is undefined or "none". If the value of parameter 3 is a display style other than "none", that style is applied.

Siehe auch

  1. ↑ The HTML code is <a href="//en.wikipedia.org/wiki/example" class="extiw" title="en:example">en:example</a>, the same in all skins.
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