Template:Em
{{{1}}}
Template documentation | This template is used on many pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them. |
Purpose
This template makes it faster and easier to apply HTML's <em>...</em> emphasis markup to text, and more importantly to indicate to human and bot editors they should not use ''...'' or <i>...</i> typographic italicization to replace the intentional and semantically meaningful <em>. Strong emphasis is usually rendered visually in an italic (oblique a.k.a. slanted) typeface by default on graphical browsers, but can be parsed and acted upon in customizable ways with style sheets, apps and text-to-speech screen readers. It is said to be semantic markup, i.e. markup that conveys meaning or context, not just visual appearance. Simple italicizing is purely typographic and is semantically meaningless. It is most often used for titles of publications (books, films, albums, etc.), foreign words and phrases, words as words (when quotation marks are not used for that purpose), names of ships, scientific names of organisms and other cases where stylistic conventions demand italics, but they convey no sense of emphasis. The average reader, and average editor, do not and need not care about this distinction most of the time, but it can be important and editors who understand it can use this template as a baseline insurance against accidental or careless replacement by bots and human editors.
Usage
{{em|text to be emphasized}}
or, if the text to be emphasized contains an equals sign:
{{em|1=text to be emphasized}}
These both render as:
- text to be emphasized
This template puts intentional and explicit <em>...</em> (emphasis) [X]HTML markup around the text provided as the first parameter. It is safest to always use the |1= syntax.
Optional parameters
Advanced HTML values can be passed through the template to the HTML code:
|role=takes a WAI-ARIA role; addsrole="rolename"to the HTML code|class=takes a class name (or multiple class names, separated by spaces); addsclass="classname[s]"to the HTML code|style=takes inline CSS input; addsstyle="CSS directive[s]"to the HTML code|id=takes a valid, unique HTML id (must begin with an alphabetic letter); addsid="name"to the HTML code|title=takes text, which cannot be marked up in any way, and displays it as a pop-up "tooltip" (in most browsers) when the cursor hovers over the span
When this template should not be used
Because {{em}} is strictly for semantic (meaningful) emphasis, it should not be used for layout, typography conventions (titles, foreign words, etc.), and other cases that are not true emphasis. In these different cases, italics wikicode ''...'' (which resolves to <i>...</i> in the browser or other user agent) should be used instead (or special markup for a particular case, such as {{var|...}} or <var>...</var> for variables in computer science and mathematics). It should also not be used when the text to which it is applied is already italicized for some other reason (e.g., it is part of a book title); in such cases use {{strong}} instead. Usually avoid using {{em}} in non-quoted sentences that end in an exclamation point. And it is usually excessive to use it on terms that are already wikilinked, since the link markup acts as a form of emphasis itself.
See also
{{Strong}}– for bold rather than italic semantic emphasis{{Strongbad}}– same but red{{Stronggood}}– same but green