These wiki pages are used as information boxes transcluded in articles. They are designed to provide additional information on a page, usually in a collasped state, but not required. This allows the reader to instantly view the additional content without leaving the article they are currently reading while keeping the page length to a minimum.
This category should contain pages in the Main namespace using article name/subpage name format, showing it is supporting the article. It must not be used to categorize articles or pages unless the page. Use <noinclude> ... </noinclude> tags to prevent category transclusion. Categorisation transclusion is specifically used in a navigational boxes in articles in a series or tutorials. See the Navigation boxes category for examples.