Living Standard — Last Updated 26 November 2024
p
elementhr
elementpre
elementblockquote
elementol
elementul
elementmenu
elementli
elementdl
elementdt
elementdd
elementfigure
elementfigcaption
elementmain
elementsearch
elementdiv
elementp
elementSupport in all current engines.
Support in all current engines.
p
element's end tag can be omitted if the
p
element is immediately followed by an address
, article
,
aside
, blockquote
, details
, dialog
,
div
, dl
, fieldset
, figcaption
,
figure
, footer
, form
, h1
, h2
,
h3
, h4
, h5
, h6
, header
,
hgroup
, hr
, main
, menu
, nav
,
ol
, p
, pre
, search
, section
,
table
, or ul
element, or if there is no more content in the parent
element and the parent element is an HTML element that is not
an a
, audio
, del
, ins
, map
,
noscript
, or video
element, or an autonomous custom
element.[Exposed =Window ]
interface HTMLParagraphElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The p
element represents a paragraph.
While paragraphs are usually represented in visual media by blocks of text that are physically separated from adjacent blocks through blank lines, a style sheet or user agent would be equally justified in presenting paragraph breaks in a different manner, for instance using inline pilcrows (¶).
The following examples are conforming HTML fragments:
< p > The little kitten gently seated herself on a piece of
carpet. Later in her life, this would be referred to as the time the
cat sat on the mat.</ p >
< fieldset >
< legend > Personal information</ legend >
< p >
< label > Name: < input name = "n" ></ label >
< label >< input name = "anon" type = "checkbox" > Hide from other users</ label >
</ p >
< p >< label > Address: < textarea name = "a" ></ textarea ></ label ></ p >
</ fieldset >
< p > There was once an example from Femley,< br >
Whose markup was of dubious quality.< br >
The validator complained,< br >
So the author was pained,< br >
To move the error from the markup to the rhyming.</ p >
The p
element should not be used when a more specific element is more
appropriate.
The following example is technically correct:
< section >
<!-- ... -->
< p > Last modified: 2001-04-23</ p >
< p > Author: [email protected]</ p >
</ section >
However, it would be better marked-up as:
< section >
<!-- ... -->
< footer > Last modified: 2001-04-23</ footer >
< address > Author: [email protected]</ address >
</ section >
Or:
< section >
<!-- ... -->
< footer >
< p > Last modified: 2001-04-23</ p >
< address > Author: [email protected]</ address >
</ footer >
</ section >
List elements (in particular, ol
and ul
elements) cannot be children
of p
elements. When a sentence contains a bulleted list, therefore, one might wonder
how it should be marked up.
For instance, this fantastic sentence has bullets relating to
and is further discussed below.
The solution is to realize that a paragraph, in HTML terms, is not a logical concept, but a structural one. In the fantastic example above, there are actually five paragraphs as defined by this specification: one before the list, one for each bullet, and one after the list.
The markup for the above example could therefore be:
< p > For instance, this fantastic sentence has bullets relating to</ p >
< ul >
< li > wizards,
< li > faster-than-light travel, and
< li > telepathy,
</ ul >
< p > and is further discussed below.</ p >
Authors wishing to conveniently style such "logical" paragraphs consisting of multiple
"structural" paragraphs can use the div
element instead of the p
element.
Thus for instance the above example could become the following:
< div > For instance, this fantastic sentence has bullets relating to
< ul >
< li > wizards,
< li > faster-than-light travel, and
< li > telepathy,
</ ul >
and is further discussed below.</ div >
This example still has five structural paragraphs, but now the author can style just the
div
instead of having to consider each part of the example separately.
hr
elementSupport in all current engines.
Support in all current engines.
select
element.[Exposed =Window ]
interface HTMLHRElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The hr
element represents a paragraph-level thematic
break, e.g., a scene change in a story, or a transition to another topic within a section of a
reference book; alternatively, it represents a separator between a set of options of a
select
element.
The following fictional extract from a project manual shows two sections that use the
hr
element to separate topics within the section.
< section >
< h1 > Communication</ h1 >
< p > There are various methods of communication. This section
covers a few of the important ones used by the project.</ p >
< hr >
< p > Communication stones seem to come in pairs and have mysterious
properties:</ p >
< ul >
< li > They can transfer thoughts in two directions once activated
if used alone.</ li >
< li > If used with another device, they can transfer one's
consciousness to another body.</ li >
< li > If both stones are used with another device, the
consciousnesses switch bodies.</ li >
</ ul >
< hr >
< p > Radios use the electromagnetic spectrum in the meter range and
longer.</ p >
< hr >
< p > Signal flares use the electromagnetic spectrum in the
nanometer range.</ p >
</ section >
< section >
< h1 > Food</ h1 >
< p > All food at the project is rationed:</ p >
< dl >
< dt > Potatoes</ dt >
< dd > Two per day</ dd >
< dt > Soup</ dt >
< dd > One bowl per day</ dd >
</ dl >
< hr >
< p > Cooking is done by the chefs on a set rotation.</ p >
</ section >
There is no need for an hr
element between the sections themselves, since the
section
elements and the h1
elements imply thematic changes
themselves.
The following extract from Pandora's Star by Peter F. Hamilton shows two
paragraphs that precede a scene change and the paragraph that follows it. The scene change,
represented in the printed book by a gap containing a solitary centered star between the second
and third paragraphs, is here represented using the hr
element.
< p > Dudley was ninety-two, in his second life, and fast approaching
time for another rejuvenation. Despite his body having the physical
age of a standard fifty-year-old, the prospect of a long degrading
campaign within academia was one he regarded with dread. For a
supposedly advanced civilization, the Intersolar Commonwealth could be
appallingly backward at times, not to mention cruel.</ p >
< p >< i > Maybe it won't be that bad</ i > , he told himself. The lie was
comforting enough to get him through the rest of the night's
shift.</ p >
< hr >
< p > The Carlton AllLander drove Dudley home just after dawn. Like the
astronomer, the vehicle was old and worn, but perfectly capable of
doing its job. It had a cheap diesel engine, common enough on a
semi-frontier world like Gralmond, although its drive array was a
thoroughly modern photoneural processor. With its high suspension and
deep-tread tyres it could plough along the dirt track to the
observatory in all weather and seasons, including the metre-deep snow
of Gralmond's winters.</ p >
The hr
element does not affect the document's
outline.
pre
elementSupport in all current engines.
Support in all current engines.
[Exposed =Window ]
interface HTMLPreElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The pre
element represents a block of preformatted text, in which
structure is represented by typographic conventions rather than by elements.
In the HTML syntax, a leading newline character immediately following
the pre
element start tag is stripped.
Some examples of cases where the pre
element could be used:
Authors are encouraged to consider how preformatted text will be experienced when the formatting is lost, as will be the case for users of speech synthesizers, braille displays, and the like. For cases like ASCII art, it is likely that an alternative presentation, such as a textual description, would be more universally accessible to the readers of the document.
To represent a block of computer code, the pre
element can be used with a
code
element; to represent a block of computer output the pre
element
can be used with a samp
element. Similarly, the kbd
element can be used
within a pre
element to indicate text that the user is to enter.
This element has rendering requirements involving the bidirectional algorithm.
In the following snippet, a sample of computer code is presented.
< p > This is the < code > Panel</ code > constructor:</ p >
< pre >< code > function Panel(element, canClose, closeHandler) {
this.element = element;
this.canClose = canClose;
this.closeHandler = function () { if (closeHandler) closeHandler() };
}</ code ></ pre >
In the following snippet, samp
and kbd
elements are mixed in the
contents of a pre
element to show a session of Zork I.
< pre >< samp > You are in an open field west of a big white house with a boarded
front door.
There is a small mailbox here.
></ samp > < kbd > open mailbox</ kbd >
< samp > Opening the mailbox reveals:
A leaflet.
></ samp ></ pre >
The following shows a contemporary poem that uses the pre
element to preserve its
unusual formatting, which forms an intrinsic part of the poem itself.
< pre > maxling
it is with a heart
heavy
that i admit loss of a feline
so loved
a friend lost to the
unknown
(night)
~cdr 11dec07</ pre >
blockquote
elementSupport in all current engines.
Support in all current engines.
cite
— Link to the source of the quotation or more information about the edit
[Exposed =Window ]
interface HTMLQuoteElement : HTMLElement {
[HTMLConstructor ] constructor ();
[CEReactions ] attribute USVString cite ;
};
The HTMLQuoteElement
interface is
also used by the q
element.
The blockquote
element represents a section that is quoted from
another source.
Content inside a blockquote
must be quoted from another source, whose address, if
it has one, may be cited in the cite
attribute.
If the cite
attribute is present, it must be a
valid URL potentially surrounded by spaces. To obtain the
corresponding citation link, the value of the attribute must be parsed relative to the element's node document. User agents may
allow users to follow such citation links, but they are primarily intended for private use (e.g.,
by server-side scripts collecting statistics about a site's use of quotations), not for
readers.
The content of a blockquote
may be abbreviated or may have context added in the
conventional manner for the text's language.
For example, in English this is traditionally done using square brackets. Consider a page with the sentence "Jane ate the cracker. She then said she liked apples and fish."; it could be quoted as follows:
< blockquote >
< p > [Jane] then said she liked [...] fish.</ p >
</ blockquote >
Attribution for the quotation, if any, must be placed outside the blockquote
element.
For example, here the attribution is given in a paragraph after the quote:
< blockquote >
< p > I contend that we are both atheists. I just believe in one fewer
god than you do. When you understand why you dismiss all the other
possible gods, you will understand why I dismiss yours.</ p >
</ blockquote >
< p > — Stephen Roberts</ p >
The other examples below show other ways of showing attribution.
The cite
IDL
attribute must reflect the element's cite
content
attribute.
Here a blockquote
element is used in conjunction with a figure
element and its figcaption
to clearly relate a quote to its attribution (which is
not part of the quote and therefore doesn't belong inside the blockquote
itself):
< figure >
< blockquote >
< p > The truth may be puzzling. It may take some work to grapple with.
It may be counterintuitive. It may contradict deeply held
prejudices. It may not be consonant with what we desperately want to
be true. But our preferences do not determine what's true. We have a
method, and that method helps us to reach not absolute truth, only
asymptotic approaches to the truth — never there, just closer
and closer, always finding vast new oceans of undiscovered
possibilities. Cleverly designed experiments are the key.</ p >
</ blockquote >
< figcaption > Carl Sagan, in "< cite > Wonder and Skepticism</ cite > ", from
the < cite > Skeptical Inquirer</ cite > Volume 19, Issue 1 (January-February
1995)</ figcaption >
</ figure >
This next example shows the use of cite
alongside blockquote
:
< p > His next piece was the aptly named < cite > Sonnet 130</ cite > :</ p >
< blockquote cite = "https://quotes.example.org/s/sonnet130.html" >
< p > My mistress' eyes are nothing like the sun,< br >
Coral is far more red, than her lips red,< br >
...
This example shows how a forum post could use blockquote
to show what post a user
is replying to. The article
element is used for each post, to mark up the
threading.
< article >
< h1 >< a href = "https://bacon.example.com/?blog=109431" > Bacon on a crowbar</ a ></ h1 >
< article >
< header >< strong > t3yw</ strong > 12 points 1 hour ago</ header >
< p > I bet a narwhal would love that.</ p >
< footer >< a href = "?pid=29578" > permalink</ a ></ footer >
< article >
< header >< strong > greg</ strong > 8 points 1 hour ago</ header >
< blockquote >< p > I bet a narwhal would love that.</ p ></ blockquote >
< p > Dude narwhals don't eat bacon.</ p >
< footer >< a href = "?pid=29579" > permalink</ a ></ footer >
< article >
< header >< strong > t3yw</ strong > 15 points 1 hour ago</ header >
< blockquote >
< blockquote >< p > I bet a narwhal would love that.</ p ></ blockquote >
< p > Dude narwhals don't eat bacon.</ p >
</ blockquote >
< p > Next thing you'll be saying they don't get capes and wizard
hats either!</ p >
< footer >< a href = "?pid=29580" > permalink</ a ></ footer >
< article >
< article >
< header >< strong > boing</ strong > -5 points 1 hour ago</ header >
< p > narwhals are worse than ceiling cat</ p >
< footer >< a href = "?pid=29581" > permalink</ a ></ footer >
</ article >
</ article >
</ article >
</ article >
< article >
< header >< strong > fred</ strong > 1 points 23 minutes ago</ header >
< blockquote >< p > I bet a narwhal would love that.</ p ></ blockquote >
< p > I bet they'd love to peel a banana too.</ p >
< footer >< a href = "?pid=29582" > permalink</ a ></ footer >
</ article >
</ article >
</ article >
This example shows the use of a blockquote
for short snippets, demonstrating that
one does not have to use p
elements inside blockquote
elements:
< p > He began his list of "lessons" with the following:</ p >
< blockquote > One should never assume that his side of
the issue will be recognized, let alone that it will
be conceded to have merits.</ blockquote >
< p > He continued with a number of similar points, ending with:</ p >
< blockquote > Finally, one should be prepared for the threat
of breakdown in negotiations at any given moment and not
be cowed by the possibility.</ blockquote >
< p > We shall now discuss these points...
Examples of how to represent a conversation are shown
in a later section; it is not appropriate to use the cite
and blockquote
elements for this purpose.
ol
elementSupport in all current engines.
Support in all current engines.
li
element: Palpable content.li
and script-supporting elements.reversed
— Number the list backwards
start
— Starting value of the list
type
— Kind of list marker
[Exposed =Window ]
interface HTMLOListElement : HTMLElement {
[HTMLConstructor ] constructor ();
[CEReactions ] attribute boolean reversed ;
[CEReactions ] attribute long start ;
[CEReactions ] attribute DOMString type ;
// also has obsolete members
};
The ol
element represents a list of items, where the items have been
intentionally ordered, such that changing the order would change the meaning of the document.
The items of the list are the li
element child nodes of the ol
element, in tree order.
Support in all current engines.
The reversed
attribute
is a boolean attribute. If present, it indicates that the list is a descending list
(..., 3, 2, 1). If the attribute is omitted, the list is an ascending list (1, 2, 3, ...).
The start
attribute, if
present, must be a valid integer. It is used to determine the starting value of the list.
An ol
element has a starting value, which is
an integer determined as follows:
If the ol
element has a start
attribute,
then:
Let parsed be the result of parsing the value of the attribute as an integer.
If parsed is not an error, then return parsed.
If the ol
element has a reversed
attribute, then return the number of owned li
elements.
Return 1.
The type
attribute can be
used to specify the kind of marker to use in the list, in the cases where that matters (e.g.
because items are to be referenced by their number/letter). The attribute, if
specified, must have a value that is identical to one of the characters given in the
first cell of one of the rows of the following table. The type
attribute represents the state given in the cell in the second
column of the row whose first cell matches the attribute's value; if none of the cells match, or
if the attribute is omitted, then the attribute represents the decimal state.
Keyword | State | Description | Examples for values 1-3 and 3999-4001 | |||||||
---|---|---|---|---|---|---|---|---|---|---|
1
(U+0031)
| decimal | Decimal numbers | 1. | 2. | 3. | ... | 3999. | 4000. | 4001. | ... |
a (U+0061)
| lower-alpha | Lowercase latin alphabet | a. | b. | c. | ... | ewu. | ewv. | eww. | ... |
A (U+0041)
| upper-alpha | Uppercase latin alphabet | A. | B. | C. | ... | EWU. | EWV. | EWW. | ... |
i (U+0069)
| lower-roman | Lowercase roman numerals | i. | ii. | iii. | ... | mmmcmxcix. | i̅v̅. | i̅v̅i. | ... |
I (U+0049)
| upper-roman | Uppercase roman numerals | I. | II. | III. | ... | MMMCMXCIX. | I̅V̅. | I̅V̅I. | ... |
User agents should render the items of the list in a manner consistent with the state of the
type
attribute of the ol
element. Numbers less than
or equal to zero should always use the decimal system regardless of the type
attribute.
For CSS user agents, a mapping for this attribute to the 'list-style-type' CSS property is given in the Rendering section (the mapping is straightforward: the states above have the same names as their corresponding CSS values).
It is possible to redefine the default CSS list styles used to implement this attribute in CSS user agents; doing so will affect how list items are rendered.
The reversed
and type
IDL
attributes must reflect the respective content attributes of the same name.
The start
IDL
attribute must reflect the content attribute of the same name, with a default
value of 1.
This means that the start
IDL attribute does
not necessarily match the list's starting value, in cases
where the start
content attribute is omitted and the reversed
content attribute is specified.
The following markup shows a list where the order matters, and where the ol
element is therefore appropriate. Compare this list to the equivalent list in the ul
section to see an example of the same items using the ul
element.
< p > I have lived in the following countries (given in the order of when
I first lived there):</ p >
< ol >
< li > Switzerland
< li > United Kingdom
< li > United States
< li > Norway
</ ol >
Note how changing the order of the list changes the meaning of the document. In the following example, changing the relative order of the first two items has changed the birthplace of the author:
< p > I have lived in the following countries (given in the order of when
I first lived there):</ p >
< ol >
< li > United Kingdom
< li > Switzerland
< li > United States
< li > Norway
</ ol >
ul
elementSupport in all current engines.
Support in all current engines.
li
element: Palpable content.li
and script-supporting elements.[Exposed =Window ]
interface HTMLUListElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The ul
element represents a list of items, where the order of the
items is not important — that is, where changing the order would not materially change the
meaning of the document.
The items of the list are the li
element child nodes of the ul
element.
The following markup shows a list where the order does not matter, and where the
ul
element is therefore appropriate. Compare this list to the equivalent list in the
ol
section to see an example of the same items using the ol
element.
< p > I have lived in the following countries:</ p >
< ul >
< li > Norway
< li > Switzerland
< li > United Kingdom
< li > United States
</ ul >
Note that changing the order of the list does not change the meaning of the document. The items in the snippet above are given in alphabetical order, but in the snippet below they are given in order of the size of their current account balance in 2007, without changing the meaning of the document whatsoever:
< p > I have lived in the following countries:</ p >
< ul >
< li > Switzerland
< li > Norway
< li > United Kingdom
< li > United States
</ ul >
menu
elementSupport in all current engines.
Support in all current engines.
li
element: Palpable content.li
and script-supporting elements.[Exposed =Window ]
interface HTMLMenuElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The menu
element represents a toolbar consisting of its contents, in
the form of an unordered list of items (represented by li
elements), each of
which represents a command that the user can perform or activate.
The menu
element is simply a semantic alternative to ul
to express an unordered list of commands (a "toolbar").
In this example, a text-editing application uses a menu
element to provide a
series of editing commands:
< menu >
< li >< button onclick = "copy()" >< img src = "copy.svg" alt = "Copy" ></ button ></ li >
< li >< button onclick = "cut()" >< img src = "cut.svg" alt = "Cut" ></ button ></ li >
< li >< button onclick = "paste()" >< img src = "paste.svg" alt = "Paste" ></ button ></ li >
</ menu >
Note that the styling to make this look like a conventional toolbar menu is up to the application.
li
elementSupport in all current engines.
Support in all current engines.
ol
elements.ul
elements.menu
elements.li
element's end tag can be omitted if the
li
element is immediately followed by another li
element or if there is
no more content in the parent element.ul
or menu
element: value
— Ordinal value of the list item
[Exposed =Window ]
interface HTMLLIElement : HTMLElement {
[HTMLConstructor ] constructor ();
[CEReactions ] attribute long value ;
// also has obsolete members
};
The li
element represents a list item. If its parent element is an
ol
, ul
, or menu
element, then the element is an item of the
parent element's list, as defined for those elements. Otherwise, the list item has no defined
list-related relationship to any other li
element.
The value
attribute, if
present, must be a valid integer. It is used to determine the ordinal
value of the list item, when the li
's list owner is an
ol
element.
Any element whose computed value of 'display' is 'list-item' has a list owner, which is determined as follows:
If the element is not being rendered, return null; the element has no list owner.
Let ancestor be the element's parent.
If the element has an ol
, ul
, or menu
ancestor, set
ancestor to the closest such ancestor element.
Return the closest inclusive ancestor of ancestor that produces a CSS box.
Such an element will always exist, as at the very least the document element will always produce a CSS box.
To determine the ordinal value of each element owned by a given list owner owner, perform the following steps:
Let i be 1.
If owner is an ol
element, let numbering be
owner's starting value. Otherwise, let
numbering be 1.
Loop: If i is greater than the number of list items that owner owns, then return; all of owner's owned list items have been assigned ordinal values.
Let item be the ith of owner's owned list items, in tree order.
If item is an li
element that has a value
attribute, then:
Let parsed be the result of parsing the value of the attribute as an integer.
If parsed is not an error, then set numbering to parsed.
The ordinal value of item is numbering.
If owner is an ol
element, and owner has a reversed
attribute, decrement numbering by 1;
otherwise, increment numbering by 1.
Increment i by 1.
Go to the step labeled loop.
The value
IDL
attribute must reflect the value of the value
content attribute.
The element's value
IDL attribute does not directly
correspond to its ordinal value; it simply reflects
the content attribute. For example, given this list:
< ol >
< li > Item 1
< li value = "3" > Item 3
< li > Item 4
</ ol >
The ordinal values are 1, 3, and 4, whereas the value
IDL attributes return 0, 3, 0 on getting.
The following example, the top ten movies are listed (in reverse order). Note the way the list
is given a title by using a figure
element and its figcaption
element.
< figure >
< figcaption > The top 10 movies of all time</ figcaption >
< ol >
< li value = "10" >< cite > Josie and the Pussycats</ cite > , 2001</ li >
< li value = "9" >< cite lang = "sh" > Црна мачка, бели мачор</ cite > , 1998</ li >
< li value = "8" >< cite > A Bug's Life</ cite > , 1998</ li >
< li value = "7" >< cite > Toy Story</ cite > , 1995</ li >
< li value = "6" >< cite > Monsters, Inc</ cite > , 2001</ li >
< li value = "5" >< cite > Cars</ cite > , 2006</ li >
< li value = "4" >< cite > Toy Story 2</ cite > , 1999</ li >
< li value = "3" >< cite > Finding Nemo</ cite > , 2003</ li >
< li value = "2" >< cite > The Incredibles</ cite > , 2004</ li >
< li value = "1" >< cite > Ratatouille</ cite > , 2007</ li >
</ ol >
</ figure >
The markup could also be written as follows, using the reversed
attribute on the ol
element:
< figure >
< figcaption > The top 10 movies of all time</ figcaption >
< ol reversed >
< li >< cite > Josie and the Pussycats</ cite > , 2001</ li >
< li >< cite lang = "sh" > Црна мачка, бели мачор</ cite > , 1998</ li >
< li >< cite > A Bug's Life</ cite > , 1998</ li >
< li >< cite > Toy Story</ cite > , 1995</ li >
< li >< cite > Monsters, Inc</ cite > , 2001</ li >
< li >< cite > Cars</ cite > , 2006</ li >
< li >< cite > Toy Story 2</ cite > , 1999</ li >
< li >< cite > Finding Nemo</ cite > , 2003</ li >
< li >< cite > The Incredibles</ cite > , 2004</ li >
< li >< cite > Ratatouille</ cite > , 2007</ li >
</ ol >
</ figure >
While it is conforming to include heading elements (e.g. h1
) inside
li
elements, it likely does not convey the semantics that the author intended. A
heading starts a new section, so a heading in a list implicitly splits the list into spanning
multiple sections.
dl
elementSupport in all current engines.
Support in all current engines.
dt
elements followed by one or more dd
elements, optionally intermixed with script-supporting elements.div
elements, optionally intermixed with script-supporting elements.[Exposed =Window ]
interface HTMLDListElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The dl
element represents an association list consisting of zero or
more name-value groups (a description list). A name-value group consists of one or more names
(dt
elements, possibly as children of a div
element child) followed by
one or more values (dd
elements, possibly as children of a div
element
child), ignoring any nodes other than dt
and dd
element children, and
dt
and dd
elements that are children of div
element
children. Within a single dl
element, there should not be more than one
dt
element for each name.
Name-value groups may be terms and definitions, metadata topics and values, questions and answers, or any other groups of name-value data.
The values within a group are alternatives; multiple paragraphs forming part of the same value
must all be given within the same dd
element.
The order of the list of groups, and of the names and values within each group, may be significant.
In order to annotate groups with microdata attributes, or other global
attributes that apply to whole groups, or just for styling purposes, each group in a
dl
element can be wrapped in a div
element. This does not change the
semantics of the dl
element.
The name-value groups of a dl
element dl are determined using the
following algorithm. A name-value group has a name (a list of dt
elements, initially
empty) and a value (a list of dd
elements, initially empty).
Let groups be an empty list of name-value groups.
Let current be a new name-value group.
Let seenDd be false.
Let child be dl's first child.
Let grandchild be null.
While child is not null:
If child is a div
element, then:
Let grandchild be child's first child.
While grandchild is not null:
Process dt
or dd
for
grandchild.
Set grandchild to grandchild's next sibling.
Otherwise, process dt
or dd
for
child.
Set child to child's next sibling.
If current is not empty, then append current to groups.
Return groups.
To process dt
or dd
for a node node means to
follow these steps:
Let groups, current, and seenDd be the same variables as those of the same name in the algorithm that invoked these steps.
If node is a dt
element, then:
If seenDd is true, then append current to groups, set current to a new name-value group, and set seenDd to false.
Append node to current's name.
Otherwise, if node is a dd
element, then append node to
current's value and set seenDd to true.
When a name-value group has an empty list as name or value, it is often due to
accidentally using dd
elements in the place of dt
elements and vice
versa. Conformance checkers can spot such mistakes and might be able to advise authors how to
correctly use the markup.
In the following example, one entry ("Authors") is linked to two values ("John" and "Luke").
< dl >
< dt > Authors
< dd > John
< dd > Luke
< dt > Editor
< dd > Frank
</ dl >
In the following example, one definition is linked to two terms.
< dl >
< dt lang = "en-US" > < dfn > color</ dfn > </ dt >
< dt lang = "en-GB" > < dfn > colour</ dfn > </ dt >
< dd > A sensation which (in humans) derives from the ability of
the fine structure of the eye to distinguish three differently
filtered analyses of a view. </ dd >
</ dl >
The following example illustrates the use of the dl
element to mark up metadata
of sorts. At the end of the example, one group has two metadata labels ("Authors" and "Editors")
and two values ("Robert Rothman" and "Daniel Jackson"). This example also uses the
div
element around the groups of dt
and dd
element, to aid
with styling.
< dl >
< div >
< dt > Last modified time </ dt >
< dd > 2004-12-23T23:33Z </ dd >
</ div >
< div >
< dt > Recommended update interval </ dt >
< dd > 60s </ dd >
</ div >
< div >
< dt > Authors </ dt >
< dt > Editors </ dt >
< dd > Robert Rothman </ dd >
< dd > Daniel Jackson </ dd >
</ div >
</ dl >
The following example shows the dl
element used to give a set of instructions.
The order of the instructions here is important (in the other examples, the order of the blocks
was not important).
< p > Determine the victory points as follows (use the
first matching case):</ p >
< dl >
< dt > If you have exactly five gold coins </ dt >
< dd > You get five victory points </ dd >
< dt > If you have one or more gold coins, and you have one or more silver coins </ dt >
< dd > You get two victory points </ dd >
< dt > If you have one or more silver coins </ dt >
< dd > You get one victory point </ dd >
< dt > Otherwise </ dt >
< dd > You get no victory points </ dd >
</ dl >
The following snippet shows a dl
element being used as a glossary. Note the use
of dfn
to indicate the word being defined.
< dl >
< dt >< dfn > Apartment</ dfn > , n.</ dt >
< dd > An execution context grouping one or more threads with one or
more COM objects.</ dd >
< dt >< dfn > Flat</ dfn > , n.</ dt >
< dd > A deflated tire.</ dd >
< dt >< dfn > Home</ dfn > , n.</ dt >
< dd > The user's login directory.</ dd >
</ dl >
This example uses microdata attributes in a dl
element, together
with the div
element, to annotate the ice cream desserts at a French restaurant.
< dl >
< div itemscope itemtype = "http://schema.org/Product" >
< dt itemprop = "name" > Café ou Chocolat Liégeois
< dd itemprop = "offers" itemscope itemtype = "http://schema.org/Offer" >
< span itemprop = "price" > 3.50</ span >
< data itemprop = "priceCurrency" value = "EUR" > €</ data >
< dd itemprop = "description" >
2 boules Café ou Chocolat, 1 boule Vanille, sauce café ou chocolat, chantilly
</ div >
< div itemscope itemtype = "http://schema.org/Product" >
< dt itemprop = "name" > Américaine
< dd itemprop = "offers" itemscope itemtype = "http://schema.org/Offer" >
< span itemprop = "price" > 3.50</ span >
< data itemprop = "priceCurrency" value = "EUR" > €</ data >
< dd itemprop = "description" >
1 boule Crème brûlée, 1 boule Vanille, 1 boule Caramel, chantilly
</ div >
</ dl >
Without the div
element the markup would need to use the itemref
attribute to link the data in the dd
elements
with the item, as follows.
< dl >
< dt itemscope itemtype = "http://schema.org/Product" itemref = "1-offer 1-description" >
< span itemprop = "name" > Café ou Chocolat Liégeois</ span >
< dd id = "1-offer" itemprop = "offers" itemscope itemtype = "http://schema.org/Offer" >
< span itemprop = "price" > 3.50</ span >
< data itemprop = "priceCurrency" value = "EUR" > €</ data >
< dd id = "1-description" itemprop = "description" >
2 boules Café ou Chocolat, 1 boule Vanille, sauce café ou chocolat, chantilly
< dt itemscope itemtype = "http://schema.org/Product" itemref = "2-offer 2-description" >
< span itemprop = "name" > Américaine</ span >
< dd id = "2-offer" itemprop = "offers" itemscope itemtype = "http://schema.org/Offer" >
< span itemprop = "price" > 3.50</ span >
< data itemprop = "priceCurrency" value = "EUR" > €</ data >
< dd id = "2-description" itemprop = "description" >
1 boule Crème brûlée, 1 boule Vanille, 1 boule Caramel, chantilly
</ dl >
The dl
element is inappropriate for marking up dialogue. See some examples of how to mark up dialogue.
dt
elementSupport in all current engines.
dd
or dt
elements inside dl
elements.dd
or dt
elements inside div
elements that are children of a dl
element.header
, footer
, sectioning content, or heading content descendants.dt
element's end tag can be omitted if the
dt
element is immediately followed by another dt
element or a
dd
element.HTMLElement
.The dt
element represents the term, or name, part of a
term-description group in a description list (dl
element).
The dt
element itself, when used in a dl
element, does
not indicate that its contents are a term being defined, but this can be indicated using the
dfn
element.
This example shows a list of frequently asked questions (a FAQ) marked up using the
dt
element for questions and the dd
element for answers.
< article >
< h1 > FAQ</ h1 >
< dl >
< dt > What do we want?</ dt >
< dd > Our data.</ dd >
< dt > When do we want it?</ dt >
< dd > Now.</ dd >
< dt > Where is it?</ dt >
< dd > We are not sure.</ dd >
</ dl >
</ article >
dd
elementSupport in all current engines.
dt
or dd
elements inside dl
elements.dt
or dd
elements inside div
elements that are children of a dl
element.dd
element's end tag can be omitted if the
dd
element is immediately followed by another dd
element or a
dt
element, or if there is no more content in the parent element.HTMLElement
.The dd
element represents the description, definition, or value, part
of a term-description group in a description list (dl
element).
A dl
can be used to define a vocabulary list, like in a dictionary. In the
following example, each entry, given by a dt
with a dfn
, has several
dd
s, showing the various parts of the definition.
< dl >
< dt >< dfn > happiness</ dfn ></ dt >
< dd class = "pronunciation" > /ˈhæpinəs/</ dd >
< dd class = "part-of-speech" >< i >< abbr > n.</ abbr ></ i ></ dd >
< dd > The state of being happy.</ dd >
< dd > Good fortune; success. < q > Oh < b > happiness</ b > ! It worked!</ q ></ dd >
< dt >< dfn > rejoice</ dfn ></ dt >
< dd class = "pronunciation" > /rɪˈdʒɔɪs/</ dd >
< dd >< i class = "part-of-speech" >< abbr > v.intr.</ abbr ></ i > To be delighted oneself.</ dd >
< dd >< i class = "part-of-speech" >< abbr > v.tr.</ abbr ></ i > To cause one to be delighted.</ dd >
</ dl >
figure
elementSupport in all current engines.
figcaption
element followed by flow content.figcaption
element.HTMLElement
.The figure
element represents some flow content,
optionally with a caption, that is self-contained (like a complete sentence) and is typically
referenced as a single unit from the main flow of the document.
"Self-contained" in this context does not necessarily mean independent. For
example, each sentence in a paragraph is self-contained; an image that is part of a sentence would
be inappropriate for figure
, but an entire sentence made of images would be
fitting.
The element can thus be used to annotate illustrations, diagrams, photos, code listings, etc.
When a figure
is referred to from the main content of the document by identifying
it by its caption (e.g., by figure number), it enables such content to be easily moved away from
that primary content, e.g., to the side of the page, to dedicated pages, or to an appendix,
without affecting the flow of the document.
If a figure
element is referenced by its relative position, e.g.,
"in the photograph above" or "as the next figure shows", then moving the figure would disrupt the
page's meaning. Authors are encouraged to consider using labels to refer to figures, rather than
using such relative references, so that the page can easily be restyled without affecting the
page's meaning.
The first figcaption
element child of the element, if any,
represents the caption of the figure
element's contents. If there is no child
figcaption
element, then there is no caption.
A figure
element's contents are part of the surrounding flow. If the purpose of
the page is to display the figure, for example a photograph on an image sharing site, the
figure
and figcaption
elements can be used to explicitly provide a
caption for that figure. For content that is only tangentially related, or that serves a separate
purpose than the surrounding flow, the aside
element should be used (and can itself
wrap a figure
). For example, a pull quote that repeats content from an
article
would be more appropriate in an aside
than in a
figure
, because it isn't part of the content, it's a repetition of the content for
the purposes of enticing readers or highlighting key topics.
This example shows the figure
element to mark up a code listing.
< p > In < a href = "#l4" > listing 4</ a > we see the primary core interface
API declaration.</ p >
< figure id = "l4" >
< figcaption > Listing 4. The primary core interface API declaration.</ figcaption >
< pre >< code > interface PrimaryCore {
boolean verifyDataLine();
undefined sendData(sequence< byte> data);
undefined initSelfDestruct();
}</ code ></ pre >
</ figure >
< p > The API is designed to use UTF-8.</ p >
Here we see a figure
element to mark up a photo that is the main content of the
page (as in a gallery).
<!DOCTYPE HTML>
< html lang = "en" >
< title > Bubbles at work — My Gallery™</ title >
< figure >
< img src = "bubbles-work.jpeg"
alt = "Bubbles, sitting in his office chair, works on his
latest project intently." >
< figcaption > Bubbles at work</ figcaption >
</ figure >
< nav >< a href = "19414.html" > Prev</ a > — < a href = "19416.html" > Next</ a ></ nav >
In this example, we see an image that is not a figure, as well as an image and a
video that are. The first image is literally part of the example's second sentence, so it's not a
self-contained unit, and thus figure
would be inappropriate.
< h2 > Malinko's comics</ h2 >
< p > This case centered on some sort of "intellectual property"
infringement related to a comic (see Exhibit A). The suit started
after a trailer ending with these words:
< blockquote >
< img src = "promblem-packed-action.png" alt = "ROUGH COPY! Promblem-Packed Action!" >
</ blockquote >
< p > ...was aired. A lawyer, armed with a Bigger Notebook, launched a
preemptive strike using snowballs. A complete copy of the trailer is
included with Exhibit B.
< figure >
< img src = "ex-a.png" alt = "Two squiggles on a dirty piece of paper." >
< figcaption > Exhibit A. The alleged < cite > rough copy</ cite > comic.</ figcaption >
</ figure >
< figure >
< video src = "ex-b.mov" ></ video >
< figcaption > Exhibit B. The < cite > Rough Copy</ cite > trailer.</ figcaption >
</ figure >
< p > The case was resolved out of court.
Here, a part of a poem is marked up using figure
.
< figure >
< p > 'Twas brillig, and the slithy toves< br >
Did gyre and gimble in the wabe;< br >
All mimsy were the borogoves,< br >
And the mome raths outgrabe.</ p >
< figcaption >< cite > Jabberwocky</ cite > (first verse). Lewis Carroll, 1832-98</ figcaption >
</ figure >
In this example, which could be part of a much larger work discussing a castle, nested
figure
elements are used to provide both a group caption and individual captions for
each figure in the group:
< figure >
< figcaption > The castle through the ages: 1423, 1858, and 1999 respectively.</ figcaption >
< figure >
< figcaption > Etching. Anonymous, ca. 1423.</ figcaption >
< img src = "castle1423.jpeg" alt = "The castle has one tower, and a tall wall around it." >
</ figure >
< figure >
< figcaption > Oil-based paint on canvas. Maria Towle, 1858.</ figcaption >
< img src = "castle1858.jpeg" alt = "The castle now has two towers and two walls." >
</ figure >
< figure >
< figcaption > Film photograph. Peter Jankle, 1999.</ figcaption >
< img src = "castle1999.jpeg" alt = "The castle lies in ruins, the original tower all that remains in one piece." >
</ figure >
</ figure >
The previous example could also be more succinctly written as follows (using title
attributes in place of the nested
figure
/figcaption
pairs):
< figure >
< img src = "castle1423.jpeg" title = "Etching. Anonymous, ca. 1423."
alt = "The castle has one tower, and a tall wall around it." >
< img src = "castle1858.jpeg" title = "Oil-based paint on canvas. Maria Towle, 1858."
alt = "The castle now has two towers and two walls." >
< img src = "castle1999.jpeg" title = "Film photograph. Peter Jankle, 1999."
alt = "The castle lies in ruins, the original tower all that remains in one piece." >
< figcaption > The castle through the ages: 1423, 1858, and 1999 respectively.</ figcaption >
</ figure >
The figure is sometimes referenced only implicitly from the content:
< article >
< h1 > Fiscal negotiations stumble in Congress as deadline nears</ h1 >
< figure >
< img src = "obama-reid.jpeg" alt = "Obama and Reid sit together smiling in the Oval Office." >
< figcaption > Barack Obama and Harry Reid. White House press photograph.</ figcaption >
</ figure >
< p > Negotiations in Congress to end the fiscal impasse sputtered on Tuesday, leaving both chambers
grasping for a way to reopen the government and raise the country's borrowing authority with a
Thursday deadline drawing near.</ p >
...
</ article >
figcaption
elementSupport in all current engines.
figure
element.HTMLElement
.The figcaption
element represents a caption or legend for the rest of
the contents of the figcaption
element's parent figure
element, if any.
The element can contain additional information about the source:
< figcaption >
< p > A duck.</ p >
< p >< small > Photograph courtesy of 🌟 News.</ small ></ p >
</ figcaption >
< figcaption >
< p > Average rent for 3-room apartments, excluding non-profit apartments</ p >
< p > Zürich’s Statistics Office — < time datetime = 2017-11-14 > 14 November 2017</ time ></ p >
</ figcaption >
main
elementSupport in all current engines.
main
element.HTMLElement
.The main
element represents the dominant contents of the
document.
A document must not have more than one main
element that does not have the attribute specified.
A hierarchically correct main
element is one whose ancestor elements
are limited to html
, body
, div
, form
without
an accessible name, and autonomous custom elements. Each main
element must be a
hierarchically correct main
element.
In this example, the author has used a presentation where each component of the page is
rendered in a box. To wrap the main content of the page (as opposed to the header, the footer,
the navigation bar, and a sidebar), the main
element is used.
<!DOCTYPE html>
< html lang = "en" >
< title > RPG System 17</ title >
< style >
header , nav , aside , main , footer {
margin : 0.5 em ; border : thin solid ; padding : 0.5 em ;
background : #EFF ; color : black ; box-shadow : 0 0 0.25 em #033 ;
}
h1 , h2 , p { margin : 0 ; }
nav , main { float : left ; }
aside { float : right ; }
footer { clear : both ; }
</ style >
< header >
< h1 > System Eighteen</ h1 >
</ header >
< nav >
< a href = "../16/" > ← System 17</ a >
< a href = "../18/" > RPXIX →</ a >
</ nav >
< aside >
< p > This system has no HP mechanic, so there's no healing.
</ aside >
< main >
< h2 > Character creation</ h2 >
< p > Attributes (magic, strength, agility) are purchased at the cost of one point per level.</ p >
< h2 > Rolls</ h2 >
< p > Each encounter, roll the dice for all your skills. If you roll more than the opponent, you win.</ p >
</ main >
< footer >
< p > Copyright © 2013
</ footer >
</ html >
In the following example, multiple main
elements are used and script is used to
make navigation work without a server roundtrip and to set the attribute on those that are not current:
<!doctype html>
< html lang = en-CA >
< meta charset = utf-8 >
< title > … </ title >
< link rel = stylesheet href = spa.css >
< script src = spa.js async ></ script >
< nav >
< a href = / > Home</ a >
< a href = /about > About</ a >
< a href = /contact > Contact</ a >
</ nav >
< main >
< h1 > Home</ h1 >
…
</ main >
< main hidden >
< h1 > About</ h1 >
…
</ main >
< main hidden >
< h1 > Contact</ h1 >
…
</ main >
< footer > Made with ❤️ by < a href = https://example.com/ > Example 👻</ a > .</ footer >
search
elementNo support in current engines.
HTMLElement
.The search
element represents a part of a document or application
that contains a set of form controls or other content related to performing a search or filtering
operation. This could be a search of the web site or application; a way of searching or filtering
search results on the current web page; or a global or Internet-wide search function.
It's not appropriate to use the search
element just for presenting
search results, though suggestions and links as part of "quick search" results can be
included as part of a search feature. Rather, a returned web page of search results would instead
be expected to be presented as part of the main content of that web page.
In the following example, the author is including a search form within the
header
of the web page:
< header >
< h1 >< a href = "/" > My fancy blog</ a ></ h1 >
...
< search >
< form action = "search.php" >
< label for = "query" > Find an article</ label >
< input id = "query" name = "q" type = "search" >
< button type = "submit" > Go!</ button >
</ form >
</ search >
</ header >
In this example, the author has implemented their web application's search functionality
entirely with JavaScript. There is no use of the form
element to perform
server-side submission, but the containing search
element semantically identifies
the purpose of the descendant content as representing search capabilities.
< search >
< label >
Find and filter your query
< input type = "search" id = "query" >
</ label >
< label >
< input type = "checkbox" id = "exact-only" >
Exact matches only
</ label >
< section >
< h3 > Results found:</ h3 >
< ul id = "results" >
< li >
< p >< a href = "services/consulting" > Consulting services</ a ></ p >
< p >
Find out how can we help you improve your business with our integrated consultants, Bob and Bob.
</ p >
</ li >
...
</ ul >
<!--
when a query returns or filters out all results
render the no results message here
-->
< output id = "no-results" ></ output >
</ section >
</ search >
In the following example, the page has two search features. The first is located in the web page's
header
and serves as a global mechanism to search the web site's content. Its purpose is
indicated by its specified title
attribute. The second is included as part of the main content
of the page, as it represents a mechanism to search and filter the content of the current page. It contains
a heading to indicate its purpose.
< body >
< header >
...
< search title = "Website" >
...
</ search >
</ header >
< main >
< h1 > Hotels near your location</ h1 >
< search >
< h2 > Filter results</ h2 >
...
</ search >
< article >
<!-- search result content -->
</ article >
</ main >
</ body >
div
elementSupport in all current engines.
Support in all current engines.
dl
element.dl
element: one or more dt
elements followed by one or more dd
elements, optionally intermixed with script-supporting elements.dl
element: flow content.[Exposed =Window ]
interface HTMLDivElement : HTMLElement {
[HTMLConstructor ] constructor ();
// also has obsolete members
};
The div
element has no special meaning at all. It represents its
children. It can be used with the class
, lang
, and title
attributes to mark up
semantics common to a group of consecutive elements. It can also be used in a dl
element, wrapping groups of dt
and dd
elements.
Authors are strongly encouraged to view the div
element as an element
of last resort, for when no other element is suitable. Use of more appropriate elements instead of
the div
element leads to better accessibility for readers and easier maintainability
for authors.
For example, a blog post would be marked up using article
, a chapter using
section
, a page's navigation aids using nav
, and a group of form
controls using fieldset
.
On the other hand, div
elements can be useful for stylistic purposes or to wrap
multiple paragraphs within a section that are all to be annotated in a similar way. In the
following example, we see div
elements used as a way to set the language of two
paragraphs at once, instead of setting the language on the two paragraph elements separately:
< article lang = "en-US" >
< h1 > My use of language and my cats</ h1 >
< p > My cat's behavior hasn't changed much since her absence, except
that she plays her new physique to the neighbors regularly, in an
attempt to get pets.</ p >
< div lang = "en-GB" >
< p > My other cat, coloured black and white, is a sweetie. He followed
us to the pool today, walking down the pavement with us. Yesterday
he apparently visited our neighbours. I wonder if he recognises that
their flat is a mirror image of ours.</ p >
< p > Hm, I just noticed that in the last paragraph I used British
English. But I'm supposed to write in American English. So I
shouldn't say "pavement" or "flat" or "colour"...</ p >
</ div >
< p > I should say "sidewalk" and "apartment" and "color"!</ p >
</ article >