Manual:Collapsible elements

MediaWiki offers collapsible classes out of the box for MediaWiki 1.18 and higher. For earlier community versions, see this revision.

jQuery.makeCollapsibleEdit

See also jQuery.makeCollapsible documentation for more information about how it works.
See also: Manual:Collapsible elements/Demo/Advanced for more examples.

This module is in MediaWiki core by default as of MediaWiki 1.18 and higher. This module ships with MediaWiki by default. You don't need to copy it to a wiki. The source (if you're interested) is in the repository for mediawiki-core (resources/src/jquery/jquery.makeCollapsible.js and resources/src/jquery/jquery.makeCollapsible.css).

Add the class mw-collapsible to any element (div, table, list, anything) to trigger it.

It does not work on mobile (phab:T111565).

TableEdit

A table can be collapsed like any other element. The difference is that part of the table remains visible, even when collapsed. A table with a caption keeps the caption visible:

{| class="mw-collapsible"
|+ Caption
|-
! scope="col" | Header 1
! scope="col" | Header 2
|-
| Data 1
| Data 2
|}
Caption
Header 1 Header 2
Data 1 Data 2

A table without a caption keeps the first row visible:

{| role="presentation" class="mw-collapsible"
|-
| Lorem
| ipsum  
|-
| dolor
| sit
|}

Result:

With specified initial stateEdit

You can add mw-collapsed after mw-collapsible to have the content collapsed by default when you load the page.

To set the initial state as collapsed add "mw-collapsed", such as seen in the following table:

{| class="mw-collapsible mw-collapsed wikitable"
! colspan=2 | The header remains visible.  
|-
| This  content || is hidden
|-
| at first || load time
|}
The header remains visible.  
This content is hidden
at first load time
{| class="mw-collapsible mw-collapsed wikitable"
|+ style=white-space:nowrap | The caption remains visible. 
|-
! Text !! More text
|-
| This  content || is hidden
|-
| at first || load time
|}
The caption remains visible.
Text More text
This content is hidden
at first load time

You can add a padded border around the caption to make it easier to see that it is a collapsed table:

|+ style="white-space:nowrap; border:1px solid; padding:3px;" | The caption remains visible. 
The caption remains visible.
Text More text
This content is hidden
at first load time

SimpleEdit

<!-- overflow:auto; to fix collapsed display, because the toggle link has float:right; -->
<div class="toccolours mw-collapsible" style="width:400px; overflow:auto;">
This text is collapsible. {{Lorem}}
</div>

Result:

This text is collapsible. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Using the data-collapsetext and data-expandtext attributes one can define a custom text for the toggle labels added by the script. When added in wikitext these could be populated by a localized message like:

<div class="mw-collapsible" data-expandtext="{{int:show}}" data-collapsetext="{{int:hide}}">

Simple with titleEdit

<div class="toccolours mw-collapsible" style="width:400px; overflow:auto;">
<div style="font-weight:bold;line-height:1.6;">Lorem ipsum sample</div>
<div class="mw-collapsible-content">
This text is collapsible. {{Lorem}}
</div></div>

Result:

Lorem ipsum sample
This text is collapsible. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

With specified collapsible partEdit

By default, a collapsible non-table element collapses completely.

To keep some content visible, even when collapsed, you can specify which part is the collapsible content.

<div class="toccolours mw-collapsible mw-collapsed">
This text is not collapsible; but the next is collapsible and hidden by default:
<div class="mw-collapsible-content">{{Lorem}}</div>
</div>

Result:

This text is not collapsible; but the next is collapsible and hidden by default:

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

With custom toggle linkEdit

This method is inaccessible and confusing to screenreader users. Avoid using it

If you don't want the script to put the default toggle link (whether or not with a custom label) in your element, you can make one of your own. This could reside anywhere inside or outside the collapsible element. Its relationship to the collapsible element is detected by using an ID attribute with the prefix mw-customcollapsible and a corresponding class attribute with prefix mw-customtoggle for the collapsible element and the togglelink respectively.

<span class="mw-customtoggle-myDivision">Toggle link</span>
<div class="mw-collapsible mw-collapsed" id="mw-customcollapsible-myDivision">Toggled text</div>
<span class="mw-customtoggle-myDivision">Additional toggle link</span>

Result:

Toggle link

Toggled text

Additional toggle link

Inside another elementEdit

You can also use collapsible elements in other elements, such as a table.

My table with collapsible info
Title Sample
Lorem Ipsum
More info
Number Letter  
1 A
2 B
3 C

Move toggle link to the leftEdit

Wide images and long bare URLs in collapsible tables or elements can cause the toggle link to go offscreen to the right when expanded. In cell phones for example. Sometimes it is difficult or impossible to get over to the toggle link to click it and close it. The following CSS puts the toggle link all the way to the left, and leaves a little space between it and the text to its right. The toggle link position does not change as the table or element is expanded or collapsed. Place the CSS in common.css by editing page "MediaWiki:common.css". Also edit mobile.css if you are importing jquery.makeCollapsible into mobile.js. For examples see common.css, mobile.js, and mobile.css

/* Collapsible elements. Toggle-link moved to left.
/* Margin around it adjusted. */

.mw-collapsible span.mw-collapsible-toggle {
    float:left;
    margin-left:0;
    margin-right:1em;
}

See alsoEdit