View source for Template:Collapsible section/doc

Use this template for supplementary notes or a long optional list. Keep the article’s main explanation and document-status banner visible. It uses a native disclosure, supports keyboard activation, and needs no JavaScript to open.

<pre>{{Collapsible section
 |title=Background notes
 |content=Additional information and links.
 |open=no
}}</pre>

* <code>title</code>: visible label; defaults to “More information”.
* <code>content</code>: wikitext to reveal; use headings, paragraphs, lists and links as usual.
* <code>open=yes</code>: start expanded. Omit it or use <code>open=no</code> to start collapsed.

When a table or other content contains a literal pipe, escape it with <code><nowiki>{{!}}</nowiki></code> inside the template parameter, including the table’s opening pipe. For very large tables, the native <code><nowiki><details></nowiki></code> and <code><nowiki><summary></nowiki></code> tags can be used directly.

== Example ==
{{Collapsible section|title=Example: additional notes|content=This example can be opened by mouse or keyboard. [[Help:Editing guide|Read the editing guide]].}}

Avoid folding essential information, primary navigation or a spoiler without a clear label. The extension automatically adds pages with disclosures to [[:Category:Pages using Details parser tag]]. Test images, lists and mobile layout before saving.
[[Category:Template documentation]]