Template:Var serif

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Page Template:Var serif/styles.css has no content.{{{1}}}

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Usage

This template is to help facilitate the displaying of variable names (in mathematics, computer source code, etc.) with the semantically correct <var>...</var>, which also renders the variable in italics, as is customary, and to do so in a serif font. This is specifically for the use of the characters "I" (upper-case i) and "l" (lower-case L), which in many sans-serif fonts can be difficult to distinguish. The template also very slightly adjusts the font size of the enclosed variable, to account for typical difference in x-height between non-fancy serif (e.g., Times and Times New Roman) and sans-serif (e.g. Arial and Helvetica) typefaces. The template should not be used generally, but only for "I" and "l", and perhaps other cases where a known visual ambiguity can be shown to exist in common sans-serif fonts for readers without acute vision. It is recommended to use {{var|1}} rather than {{var serif|1}} for "1" (numeral one), as it is usually more clearly distinguishable from "I" and "l" in sans-serif than serif fonts.

{{Var serif}} need not be used for variables that simply contain "I" or "l", only for cases in which readers are likely to be unable to distinguish them visually.

The {{var serif}} method is preferred to simply italicizing and using inline style to specify the font, for accessibility, content/presentation separation, semantic Web, and metadata reasons; XHTML's <var> element has semantic meaning, while simple font changes like italicizing does not.

Because the font styling in the template is done entirely with CSS, it has no effect at all upon content semantics, nor does it change the output for users of screen reader software.

Example:

{{var serif|I}}

outputs:

<var style="font-size:118%;font-family:serif;">I</var>

which renders as:

Page Template:Var serif/styles.css has no content.I
Comparisons
{{var|I}} = I
{{var|l}} = l
{{var|1}} = 1
{{var serif|I}} = Page Template:Var serif/styles.css has no content.I
{{var serif|l}} = Page Template:Var serif/styles.css has no content.l
{{var serif|1}} = Page Template:Var serif/styles.css has no content.1

Please note that {{var serif}} is not a panacea; its treatment of the numeral "1" is easily mistaken for the letter "l" (lower-case "L") in many serif fonts.

Recommended usage
{{var serif|I}} = Page Template:Var serif/styles.css has no content.I
{{var serif|l}} = Page Template:Var serif/styles.css has no content.l
{{var|1}} = 1
{{var|variable}} for any other variable

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. Click here to see a monthly parameter usage report for this template based on this TemplateData.

TemplateData for Var serif

No description.

Template parameters

ParameterDescriptionTypeStatus
11

no description

Unknownoptional
Classclass

no description

Unknownoptional
Idid

no description

Unknownoptional
Stylestyle

no description

Unknownoptional
Langlang

no description

Unknownoptional
Titletitle

no description

Unknownoptional
This template is based (in parts) on the Template:Var serif from the free encyclopedia wikipedia and is licensed under GNU license for free documentation and the Creative Commons Attribution/Share Alike. On wikipedia there is a List of authors accessible. More about importing from wikipedia on page Imedwiki:Importing from wikipedia.