Help:HTML in wikitext: Difference between revisions

Revision as of 10:32, 16 August 2025

Latest revision as of 23:07, 17 August 2025

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{{Wiki markup}}

The [[MediaWiki]] software, which drives Wikipedia, allows the use of a subset of [[HTML 5HTML5]] [[HTML element|elements]], or tags and their [[HTML attribute|attributes]], for presentation formatting.{{r|sanitizer}} However, most HTML functionality can be replicated using equivalent [[Help:Wiki markup|wiki markup]] or [[Help:Templates|templates]]. These alternatives are generally preferred within articles because they are often simpler for most editors to use and less intrusive in the editing interface. [[Wikipedia:Manual_of_Style#Keep_markup_simple|Wikipedia's Manual of Style]] recommends when and where these alternatives should be used. (See [[Help:Wikitext]] for wikitext equivalents to HTML tags not otherwise discussed below.)

HTML can also be useful outside articles, such as for formatting within templates. For assistance with using Cascading Style Sheets on Wikipedia, see [[Help:Cascading Style Sheets]].

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[[MOS:QUOTATIONS]] says Wikipedia should instead use "", {{tl|quote}}, or <nowiki><blockquote></nowiki>.

==== rp, rt, rtc, ruby ====

{{see|Ruby character}}

{{tag|ruby}} marks spans of phrasing content with ruby annotations.

* {{tag|rtc}} marks a ruby text container for ruby text components in a ruby annotation

* {{tag|rt}} marks the ruby text component of a ruby annotation; the ruby text shows in a reduced size over top of the normal characters.

* {{tag|rp}} is used to provide parentheses around a ruby text component of a ruby annotation, to be shown by user agents that don't support ruby annotations.

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{{markup

|<syntaxhighlight lang="html"><ruby>

東<rtc><rp>(</rp><rt>とう</rt><rp>)</rp></rtc>

京<rtc><rp>(</rp><rt>きょう</rt><rp>)</rp></rtc>

</ruby></syntaxhighlight>

|<ruby>

東<rtc><rp>(</rp><rt>とう</rt><rp>)</rp></rtc>

京<rtc><rp>(</rp><rt>きょう</rt><rp>)</rp></rtc>

</ruby>

}}

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== Obsolete/deprecated elements ==

{{main|Wikipedia:HTML5#Obsolete elements and attributes}}

These elements are now obsolete and either deprecated or removed in HTML5, although they are still supported by browsers.<ref name="w3c_obsolete" /> '''Their use should be avoided on Wikipedia.''' These tags either have an alternate tag or a template that replaces their function with CSS; except for {{tag|big}}, the tags are being replaced by editors on pages throughout Wikipedia (see [[Wikipedia:Linter]] for more details). See {{slink|Wikipedia:HTML5#Obsolete elements and attributes}} for more details on obsolete HTML parts and their replacements.

=== big ===

{{dc|{{tag|big}} (obsolete)}} was used to render text in a "large" font.

Templates: {{tlx|big}} uses CSS.

=== center ===

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{{dc|{{tag|rb}} (obsolete)}} was used to mark base text in a ruby annotation.

For replacements, see: [[Help:HTML in wikitext#rp, rt, rtc, ruby]]

=== strike ===

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{{details|mw:Extension:InputBox}}

{{tag|input|o}} is used to create [[Form (HTML)|forms]]. The {{xtag|inputbox}} extension tag is used to create a text box with a button.

== HTML Tidy ==

{{historical |type=section}}

[[HTML Tidy]] is an outdated HTML4 library{{vague|upstream is now HTML5}} that is [[:mw:Parsing/Replacing Tidy|slated for removal]]. Tidy parses the MediaWiki output and cleans it up to increase the likelihood that valid HTML4 is rendered. For example, with Tidy enabled, {{tag|br|o}}, {{tag|br|c}}, {{tag|br/|o}}, {{tag|br.|o}} all rendered as {{tag|br|s}}. Tidy is not enabled for [[Help:MediaWiki namespace|MediaWiki interface pages]]. Tidy was never perfect and has been known to introduce errors.

== Exceptions ==