Wikipedia:Advanced footnote formatting

The topic of advanced footnote formatting[essay] involves techniques for coding remote footnotes of pronunciations or examples, plus indentation and line-splitting. Many articles could use remote footnotes, such as explaining various ways some words are pronounced:

The term "time dilation"[p] refers to a slowing of elapsed duration.
Notes
   [p] – The word dilation is pronounced "dy-LAY-shun" and is the preferred term.

The superscript "[p]" can be coded by just the short wikilink: <sup>[[#Notes|[p] ]]</sup>. The full, detailed content of that footnote text is not in the upper text of the article but, instead, is coded within the section named "Notes" (or "References"). See below: Remote footnotes & Footnotes within footnotes.

Also, indentation and line-splitting can be used, such as for long URL webpage names, when coding footnotes in an article. For example:

 In [[digital imaging]], a pixel<ref>
   Rudolf F. Graf, ''Modern Dictionary of Electronics'',
   1999, Newnes, Oxford, page 569, ISBN 0-7506-43315,
   Google Books (''see below:'' References).</ref>
 (or picture element) is the smallest part of an image.

In the above example, each part of the ref-tag footnote is indented (3 spaces) from the left margin. Due to a Wikipedia quirk, the first footnote on a page cannot be indented, because it is treated as a quotebox.

There are numerous styles for displaying footnotes (or endnotes) in a Wikipedia article. There are also many predefined footnote templates (see WP:Citation templates), but with limitations, so (as of March 2012), footnotes also can be hand-formatted to best fit each article.