సహాయం:HTML in wikitext
ఈ పేజీ, వికీపీడియా లోని ఒక విశేషం గురించీ దాన్ని అమలు చేసే విధానం గురించీ వివరించే ఎలా చెయ్యాలి అనే మార్గసూచిక లోని భాగం. |
The MediaWiki software, that drives Wikipedia, allows the use of a subset of HTML5 elements, or tags and their attributes, for presentation formatting.[1] But most HTML can be included by using equivalent wiki markup or templates; these are preferred within articles, as they are simpler for most editors, and less intrusive in the editing window. But HTML is useful outside of articles, for example for formatting within templates. For help with Cascading Style Sheet use within Wikipedia see Help:Cascading Style Sheets.
Some tags look like HTML, but are actually MediaWiki parser and extension tags, and so are really wiki markup. HTML in pages can be checked for HTML5 compliance by using validation.
Tutorials
మార్చుThis help page gives only an overview of allowed markup. For further assistance and detailed specifications:
- HTML5 Introduction at w3schools.com
Attributes
మార్చుHTML attributes provide additional information about an element and are always specified in the start tag. They are formatted as a name/value pair like name="value"
.
Global attributes apply to all tags. Attributes not listed here are not allowed by MediaWiki[1]:
class
: one or more classifications to which the element belongs. See Wikipedia:Catalogue of CSS classes.dir
: text direction— "ltr
" (left-to-right), "rtl
" (right-to-left) or "auto
".id
: unique identifier for the element.lang
: primary language for the contents of the element per BCP 47. The MediaWiki software automatically adds thexml:lang
attribute wheneverlang
is defined, butxml:lang
will no longer be passed when included as a separate attribute.style
: applies CSS styling to the contents of the element.title
: advisory information associated with the element.
HTML5 microdata attributes apply to all tags:[2]
- Any attribute beginning with
data-
itemid
itemprop
itemref
itemscope
itemtype
Other tags such as <table>
support specific attributes – these are listed in the appropriate section.
Markup | Renders as |
---|---|
This is <span style="color:red">red</span> text. |
This is red text. |
The MediaWiki మూస:Sanitizer.php does some cleanup on attributes. A best practice is to use the proper syntax.
- Discards attributes not on a whitelist for the given element.
- Turns broken or invalid entities into plaintext.
- Double-quotes all attribute values.
- Attributes without values are given the name as value.
- Double attributes are discarded.
- Unsafe style attributes are discarded.
- Prepends space if there are attributes.
Elements
మార్చుThese HTML elements are supported by the MediaWiki software. This section gives a brief overview of the HTML element, an example, relevant wikimarkup and templates.
Basic
మార్చుh1, h2, h3, h4, h5, h6
మార్చుThe <h1>...</h1>
through <h6>...</h6>
tags are headings for the sections with which they are associated. <h1>
is used for the article title. Headings are styled through CSS and added to the page's table of contents.
Markup | Renders as |
---|---|
<h1>Heading 1</h1> <h2>Heading 2</h2> <h3>Heading 3</h3> <h4>Heading 4</h4> <h5>Heading 5</h5> <h6>Heading 6</h6> |
|
Wikimarkup: surround the text with the appropriate number of equal signs. Headers formatted with wikimarkup add an [edit] link.
Markup | Renders as |
---|---|
= Heading 1 = == Heading 2 == === Heading 3 === ==== Heading 4 ==== ===== Heading 5 ===== ====== Heading 6 ====== |
|
Wiki headers use the following default CSS:
Wikimarkup | HTML | Style |
---|---|---|
= Heading = |
<h1> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 1.8em; font-family: Georgia,Times,serif; margin-top: 1em; margin-bottom: 0.25em; line-height: 1.3; padding: 0; border-bottom: 1px solid #AAAAAA; |
== Heading == |
<h2> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 1.5em; font-family: Georgia,Times,serif; margin-top: 1em; margin-bottom: 0.25em; line-height: 1.3; padding: 0; border-bottom: 1px solid #AAAAAA; |
=== Heading === |
<h3> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 1.17em; font-weight: bold; margin-top: 0.3em; margin-bottom: 0; line-height: 1.6; padding-top: 0.5em; padding-bottom: 0; |
==== Heading ==== |
<h4> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 100%; font-weight: bold; margin-top: 0.3em; margin-bottom: 0; line-height: 1.6; padding-top: 0.5em; padding-bottom: 0; |
===== Heading ===== |
<h5> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 100%; font-weight: bold; margin-top: 0.3em; margin-bottom: 0; line-height: 1.6; padding-top: 0.5em; padding-bottom: 0; |
====== Heading ====== |
<h6> |
color: #000000; background: none; overflow: hidden; page-break-after: avoid; font-size: 100%; font-weight: bold; margin-top: 0.3em; margin-bottom: 0; line-height: 1.6; padding-top: 0.5em; padding-bottom: 0; |
Templates: {{fake heading}} for use in documentation
p
మార్చు<p>...</p>
tag places content into a separate paragraph.
Markup | Renders as |
---|---|
<p>HyperText Markup Language</p><p>HyperText Markup Language</p> |
HyperText Markup Language HyperText Markup Language |
Wikimarkup: Separate paragraphs by a single blank line.
Markup | Renders as |
---|---|
HyperText Markup Language HyperText Markup Language |
HyperText Markup Language HyperText Markup Language |
br
మార్చు<br>
or <br />
inserts a line break. Both versions of the break are supported by HTML5. </br>
is invalid.
Markup | Renders as |
---|---|
HyperText<br>Markup Language |
HyperText |
Templates:
- {{break}} adds multiple line breaks.
- {{crlf2}} adds adds a true carriage return and line feed.
- {{-}} adds a break with styling to clear floating elements.
- {{plainlist}} creates an unbulleted list.
hr
మార్చు<hr>
represents a paragraph-level thematic break and presents as a horizontal rule.
Markup | Renders as |
---|---|
<hr> |
|
Wikimarkup: use ----
Markup | Renders as |
---|---|
---- |
|
Templates: {{hr}}
comment
మార్చు<!-->...</!-->
formats the enclosed text as a hidden comment.
Markup | Renders as |
---|---|
HyperText<!--Markup Language--> |
HyperText |
Formatting
మార్చుabbr
మార్చు<abbr>...</abbr>
creates a tooltip to define an abbreviation or acronym that is displayed on mouse-over.
Markup | Renders as |
---|---|
<abbr title="HyperText Markup Language">HTML</abbr> |
HTML |
Support: not supported by IE6 or IE7.
Templates: {{abbr}}; supports Unicode display
b
మార్చు<b>...</b>
formats text stylistically offset from other text (bold) without conveying extra importance.
Markup | Renders as |
---|---|
<b>HyperText Markup Language</b> |
HyperText Markup Language |
Wikimarkup: Use '''
to open and close bold text.
Markup | Renders as |
---|---|
'''HyperText Markup Language''' |
HyperText Markup Language |
bdi
మార్చు<bdi>...</bdi>
isolates the content from the surrounding text-direction settings.
Markup | Renders as |
---|---|
اليمين إلى اليسارleft to right |
اليمين إلى اليسارleft to right |
اليمين إلى اليسار<bdi>left to right</bdi> |
اليمين إلى اليسارleft to right |
Support: Firefox, Chrome
bdo
మార్చు<bdo>...</bdo>
specifies the text direction.
Attributes and values:
dir
— Specifies the text direction.ltr
rtl
Markup | Renders as |
---|---|
<bdo dir="rtl">HyperText Markup Language</bdo> |
HyperText Markup Language |
blockquote
మార్చు<blockquote>...</blockquote>
presents text in an offset block.
Markup | Renders as |
---|---|
<blockquote>HyperText Markup Language</blockquote> |
|
Templates: {{quote}}; supports pre-formatted attribution and source parameters. For other specialized quotation templates, see Category:Quotation templates.
cite
మార్చు<cite>...</cite>
contains the title of a work and by default is formatted in italics. This is a new definition in HTML5— in the previous XML implementation <cite>
was used to contain a citation or a reference to other sources.
Markup | Renders as |
---|---|
<cite>HyperText Markup Language</cite> |
HyperText Markup Language |
code
మార్చు<code>...</code>
formats a section of computer code. MediaWiki applies CSS styling to display <code>
in a monospace font.
Markup | Renders as |
---|---|
<code>HyperText Markup Language</code> |
|
Templates: {{code}} uses <syntaxhighlight>
.
data
మార్చు<data>...</data>
formats a machine-readable version of contents.
Markup | Renders as |
---|---|
<data value="978-0764502149">HTML for Dummies</data> |
HTML for Dummies |
Attributes: value
del
మార్చు<del>...</del>
formats deleted text.
Markup | Renders as |
---|---|
<del>HyperText Markup Language</del> |
|
dfn
మార్చు<dfn>...</dfn>
is used for indicating a definition.
Markup | Renders as |
---|---|
<dfn>Definition</dfn> |
Definition |
Templates: {{dfn}}
em
మార్చు<em>...</em>
represents a span of text with emphatic stress.
Markup | Renders as |
---|---|
<em>HyperText Markup Language</em> |
HyperText Markup Language |
Templates: {{em}}
i
మార్చు<i>...</i>
represents a span of text offset from its surrounding content without conveying any extra emphasis or importance, and for which the conventional typographic presentation is italic text.
Markup | Renders as |
---|---|
<i>HyperText Markup Language</i> |
HyperText Markup Language |
Wikimarkup: Use ''
to open and close italic text.
Markup | Renders as |
---|---|
''HyperText Markup Language'' |
HyperText Markup Language |
ins
మార్చు<ins>...</ins>
indicates a range of text that has been added. Styled as underlined text. Used on talk pages to indicate refactored text; see WP:REDACT.
Markup | Renders as |
---|---|
<ins>HyperText Markup Language</ins> |
HyperText Markup Language |
kbd
మార్చు<kbd>...</kbd>
indicates user input such as keyboard input or voice commands.
Markup | Renders as |
---|---|
Press <kbd>Enter</kbd> |
Press Enter |
Templates:
mark
మార్చు<mark>...</mark>
represents a run of text in one document marked or highlighted for reference purposes, due to its relevance in another context. Marked text is formatted with a yellow background by default.
It does not highlight leading or trailing whitespace characters. To do so, use non-breaking spaces instead, e.g., using the function {{spaces}}.
Markup | Renders as |
---|---|
<mark>HyperText Markup Language</mark> |
HyperText Markup Language |
<mark style="background:lightblue">HyperText Markup Language</mark> |
HyperText Markup Language |
Support: Not supported by Internet Explorer 8 and below.
pre
మార్చు<pre>...</pre>
element represents a block of preformatted text. In MediaWiki, <pre>
is actually a parser tag and not HTML, but the function is the same.
Markup | Renders as |
---|---|
<pre>HyperText Markup Language</pre> |
HyperText Markup Language |
HTML entities
<pre>
parses HTML entities. If you want to escape this, replace &
with &
.
Markup | Renders as |
---|---|
<pre>&</pre> |
& |
<pre><</pre> |
< |
<pre>&amp;</pre> |
& |
<pre>&lt;</pre> |
< |
Templates:
q
మార్చు<q>...</q>
is used to mark a short quotation.
Markup | Renders as |
---|---|
<q>HyperText Markup Language</q> |
|
rb, rp, rt, ruby
మార్చు<ruby>...</ruby>
marks spans of phrasing content with ruby annotations.
<rt>...</rt>
marks the ruby text component of a ruby annotation; the ruby text shows in a reduced size over top of the normal characters.
<rb>...</rb>
(formerly obsolete) Used to mark base text in a ruby annotation
<rp>...</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.
Browsers that do not support ruby characters will show the ruby text in normal size, enclosed in parentheses and after the normal content.
Markup | Renders as |
---|---|
<ruby> 東<rp>(</rp><rt>とう</rt><rp>)</rp> 京<rp>(</rp><rt>きょう</rt><rp>)</rp> </ruby> |
東 京 |
Templates:
- {{ruby}}
- {{ruby-ja}} for Japanese
- {{Ruby-zh-p}} for Chinese pinyin
- {{Ruby-zh-b}} for Chinese bopomofo
s
మార్చు<s>...</s>
is used to indicate content that is no longer accurate or relevant and that has been struck from the page. It is not appropriate when indicating document edits; to mark a span of text as having been removed from a document, use <del>
.
Markup | Renders as |
---|---|
<s>HyperText Markup Language</s> |
|
Templates: {{strikethrough}}
samp
మార్చు<samp>...</samp>
indicates output from a program or computing system.
Markup | Renders as |
---|---|
<samp>HyperText Markup Language</samp> |
HyperText Markup Language |
Templates: {{samp}} applies gray styling
small
మార్చు<small>...</small>
format small text.
Markup | Renders as |
---|---|
<small>HyperText Markup Language</small> |
HyperText Markup Language |
Templates:
- {{small}} uses
<small style="font-size:85%;">
. {{small}} is recommended over<small>
since not all browsers render small text the same.
strong
మార్చు<strong>...</strong>
formats a span of text with strong importance.
Markup | Renders as |
---|---|
<strong>HyperText Markup Language</strong> |
HyperText Markup Language |
Templates: {{strong}}
sub
మార్చు<sub>...</sub>
formats a span of text as a subscript.
Markup | Renders as |
---|---|
HyperText <sub>Markup Language</sub> |
HyperText Markup Language |
Templates:
- {{sub}} (subscript text)
- {{subsub}} (మూస:Subsub text)
- {{ssub}} (మూస:Ssub text)
- {{sup}} (superscript text)
- {{su}} (superscript
subscript text) - {{sup sub}} (textsup
sub) - {{e}} (1.23×104)
sup
మార్చు<sup>...</sup>
formats a span of text as a superscript.
Markup | Renders as |
---|---|
HyperText <sup>Markup Language</sup> |
HyperText Markup Language |
Templates:
- {{sub}} (subscript text)
- {{subsub}} (మూస:Subsub text)
- {{ssub}} (మూస:Ssub text)
- {{sup}} (superscript text)
- {{su}} (superscript
subscript text) - {{sup sub}} (textsup
sub) - {{e}} (1.23×104)
time
మార్చు<time>...</time>
defines either a time (24 hour clock), or a date in the Gregorian calendar, optionally with a time and a time-zone offset.
Markup | Renders as |
---|---|
<time>10:00</time> |
|
Attributes: datetime
Support: Not supported by Internet Explorer 8 and below.
u
మార్చు<u>...</u>
represents a span of text offset from its surrounding content without conveying any extra emphasis or importance, and for which the conventional typographic presentation is underlining; for example, a span of text in Chinese that is a proper name (a Chinese proper name mark), or span of text that is known to be misspelled.
Markup | Renders as |
---|---|
<u>HyperText Markup Language</u> |
HyperText Markup Language |
Templates: {{underline}}
var
మార్చు<var>...</var>
formats text in italics to indicate a variable in a mathematical expression or programming context, or placeholder text that the reader is meant to mentally replace with some other literal value.
Markup | Renders as |
---|---|
<var>HyperText Markup Language</var> |
HyperText Markup Language |
Templates:
wbr
మార్చు<wbr>
is a word break opportunity; that is, it specifies where it would be OK to add a line-break where a word is too long, or it is perceived that the browser will break a line at the wrong place.
Markup | Renders as |
---|---|
Now is the time to become a power editor, by learning HyperText Markup Language |
Now is the time to become a power editor, by learning HyperText Markup Language |
Now is the time to become a power editor, by learning Hyper<wbr>Text Markup Language |
Now is the time to become a power editor, by learning Hyper |
As the browser window is adjusted narrower, the second example wraps between Hyper and Text.
Lists
మార్చుDo not leave blank lines between items in a list unless there is a reason to do so, since this causes the MediaWiki software to interpret each item as beginning a new list.
dl, dt, dd
మార్చు<dl>...</dl>
, <dt>...</dt>
and <dd>...</dd>
are used to create a description list (formerly definition list) with terms and descriptions. Terms are displayed in bold and descriptions are indented. Each term must include one or more descriptions.
Markup | Renders as |
---|---|
<dl> <dt>Term</dt> <dd>Definition 1</dd> <dd>Definition 2</dd> <dd>Definition 3</dd> <dd>Definition 4</dd> </dl> |
|
Wikimarkup: <dt>
is created using ;
while automatically enclosed in <dl>...</dl>
. <dd>
is created using :
for each value. For a single or first value the :
can be placed on the same line after ;
where subsequent values must be placed on separate lines.
Markup | Renders as |
---|---|
; Term : Definition 1 : Definition 2 : Definition 3 : Definition 4 |
|
Templates: {{defn}}
ol, ul, li
మార్చు<ol>...</ol>
represents an ordered list; <ul>...</ul>
represents an unordered list; <li>...</li>
represents a list item within either type of list.
Markup | Renders as |
---|---|
<ol> <li>Item 1</li> <li>Item 2</li> <li>Item 3</li> <li>Item 4</li> </ol> |
|
<ul> <li>Item 1</li> <li>Item 2</li> <li>Item 3</li> <li>Item 4</li> </ul> |
|
Wikimarkup: use *
for items in an unordered list and #
for ordered lists.
Markup | Renders as |
---|---|
# Item 1 # Item 2 # Item 3 # Item 4 |
|
* Item 1 * Item 2 * Item 3 * Item 4 |
|
Templates: for a variety of specialized uses, see Category:List formatting and function templates.
Containers
మార్చుdiv
మార్చు<div>...</div>
is a generic container for flow content that displays as a block element.
Markup | Renders as |
---|---|
HyperText <div>Markup</div> Language |
HyperText
Markup Language
|
span
మార్చు<span>...</span>
is a container for flow content that displays as an inline element.
Markup | Renders as |
---|---|
HyperText <span>Markup</span> Language |
HyperText Markup Language |
Tables
మార్చుtable, td, tr
మార్చు<table>...</table>
defines a table.
<tr>...</tr>
defines a table row.
<td>...</td>
defines a data cell with contents that may include text, links, images, lists, forms, other tables, etc.
Markup | Renders as | ||
---|---|---|---|
<table border=1> <tr> <td>data</td> <td>data</td> </tr> </table> |
| ||
Attributes:
<table>
:- Allowed but not recommended:
border=""
andborder="1"
- Allowed but obsolete:
border
(with a non-empty value different from "1"),align
,bgcolor
,cellpadding
,cellspacing
,frame
,rules
,summary
,width
[3]
- Allowed but not recommended:
<td>
:colspan
,headers
,rowspan
- Allowed but obsolete:
abbr
,align
,axis
,bgcolor
,scope
,height
,nowrap
,valign
,width
[3]
- Allowed but obsolete:
th
మార్చు<th>...</th>
defines a table header; styled as centered and bold.
Markup | Renders as | ||||
---|---|---|---|---|---|
<table border="1"> <tr> <th>Header</th> <th>Header</th> </tr> <tr> <td>data</td> <td>data</td> </tr> </table> |
| ||||
Attributes:
<th>
:colspan
,headers
,rowspan
,scope
- Allowed but obsolete:
abbr
,align
,axis
,bgcolor
,scope
,height
,nowrap
,valign
,width
[3]
- Allowed but obsolete:
caption
మార్చు<caption>...</caption>
adds a caption to a table.
Markup | Renders as | ||
---|---|---|---|
<table border=1> <caption>Caption</caption> <tr> <td>data</td> <td>data</td> </tr> </table> |
| ||
Attributes:
<caption>
:- Allowed but obsolete:
align
[3]
- Allowed but obsolete:
thead, tfoot, tbody
మార్చు<thead>
, <tfoot>
and <tbody>
are not supported, but are automatically generated when the page is rendered.
Obsolete elements
మార్చుThese elements are now obsolete in HTML5, but still supported by browsers.[3] These tags either have an alternate tag or a template that replaces their function with CSS.
big
మార్చు formats text in a larger font size.
<big>...</big>
(obsolete)
Markup | Renders as |
---|---|
<big>HyperText Markup Language</big> |
HyperText Markup Language |
Templates: {{big}} uses CSS.
center
మార్చు is used to center text elements.
<center>...</center>
(obsolete)
Markup | Renders as |
---|---|
<center>HyperText Markup Language</center> |
|
Templates: {{center}} uses CSS.
font
మార్చు is used to set the font size, font face and color of text.
<font>...</font>
(obsolete)
Markup | Renders as |
---|---|
<font size="3" face="verdana" color="green">HyperText Markup Language</font> |
HyperText Markup Language |
Templates: {{font}} uses CSS.
strike
మార్చు (obsolete) formats strike-through characters; use <strike>...</strike>
<s>
instead.
Markup | Renders as |
---|---|
<strike>HyperText Markup Language</strike> |
|
tt
మార్చు formats text in a fixed-width font. Use <tt>...</tt>
(obsolete)<code>
, <kbd>
or <samp>
instead.
Markup | Renders as |
---|---|
<tt>HyperText Markup Language</tt> |
HyperText Markup Language |
Unsupported elements
మార్చుThese elements are not supported, but have equivalent wiki markup. Attempting to use any element not whitelisted by మూస:Sanitizer.php will result in the markup showing as plain text.
a
మార్చు<a>
is used to create links. Use the [[ ]]
wikimarkup for internal links and [ ]
for external links.
input
మార్చు<input>
is used to create forms. The <inputbox>
extension tag is used to create a text box with a button.
HTML Tidy
మార్చుHTML Tidy is enabled for the English Wikipedia. Tidy parses the MediaWiki output and cleans it up to ensure that valid HTML is rendered. For example, <br>
, </br>
, <br/>
, <br.>
will all render as <br />
. Tidy is not enabled for MediaWiki interface pages. Tidy is not perfect, and has been known to introduce errors.
Exceptions
మార్చుIn some pages in the MediaWiki namespace, typically the short messages like button labels, HTML is not parsed, and tags will be exposed.
User and sitewide CSS and Javascript pages are interpreted as if inside a <pre>
block. See Help:User style.
Validation
మార్చుThe MediaWiki software attempts to fix HTML errors, but it does not catch all of them. Where HTML is used, it is helpful to verify it with the W3C Markup Validation Service.
Parser and extension tags
మార్చుThe MediaWiki software adds elements that look and act like HTML tags. Parser tags are included in MediaWiki whereas extension tags are added by optional software extensions. Installed tags are listed at Special:Version.
- Extension tags
<categorytree>
,<charinsert>
,<gallery>
,<hiero>
,<imagemap>
,<inputbox>
,<math>
,<nowiki>
,<poem>
,<ref>
,<references>
,<score>
,<section>
,<syntaxhighlight>
(alias<source>
),<templatedata>
,<timeline>
See also
మార్చుReferences
మార్చు- ↑ 1.0 1.1 Allowable elements and attributes are defined in the మూస:Sanitizer.php module.
- ↑ "The microdata model". HTML Living Standard.
- ↑ 3.0 3.1 3.2 3.3 3.4 "HTML5: A vocabulary and associated APIs for HTML and XHTML: Obsolete Features". W3C. 31 July 2014.
External links
మార్చు- HTML 4.01 specification: elements | attributes