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HTML documentation index

Found 185 pages:

# Page Tags and summary
1 HTML HTML, HTML Lesson, HTML Programming, HTML Tutorials, HTML5, Hyper text, Landing, Reference, Référence, Web, What is HTML, click
HTML, which stands for HyperText Markup Language, is the most basic building block of a webpage and used for creating and visually representing a webpage. It determines the content of a webpage, but not its functionality.
2 Block-level elements Beginner, Development, Guide, HTML, HTML5, Web
HTML (Hypertext Markup Language) elements are usually either "block-level" elements or "inline" elements. A block-level element occupies the entire space of its parent element (container), thereby creating a "block." This article helps to explain what this means.
3 CORS enabled image Advanced, CORS, Canvas, HTML, Reference, Référence, Security, canvas
The HTML specification introduces a crossorigin attribute for images that, in combination with an appropriate CORS header, allows images defined by the <img> element loaded from foreign origins to be used in canvas as if they were being loaded from the current origin.
4 CORS settings attributes Advanced, CORS, HTML, NeedsContent, NeedsExample, Reference, Security
In HTML5, some HTML elements which provide support for CORS, such as <img> or <video>, have a crossorigin attribute (crossOrigin property), which lets you configure the CORS requests for the element's fetched data.
5 Controlling spell checking in HTML forms Configuration management, HTML, Intermediate, MakeBrowserAgnostic, NeedsUpdate
Firefox 2 introduces spell checking support to text areas and text fields in web forms.
6 DASH Adaptive Streaming for HTML 5 Video Guide, HTML, HTML5
Dynamic Adaptive Streaming over HTTP (DASH) is an adaptive streaming protocol.
7 Focus management in HTML DOM, Focus, HTML, HTML5, Intermediate, NeedsBrowserCompatibility, NeedsContent, NeedsExample
In the HTML5 working draft, the activeElement DOM attribute and the hasFocus() DOM method give the programmer the ability to have better control of the interactivity of the page due to the user's actions. For example, both of them can be used for statistical usage purposes, tracking the number of clicks on certain links of a page, measuring the amount of time an element is focused, and so forth. In addition, when combined with AJAX technology, they help minimize the number of requests to the server, depending on the user activity and the page layout.
8 Global attributes Attribute, HTML, NeedsBrowserCompatibility, Reference, Web
Global attributes may be specified on all HTML elements, even those not specified in the standard. That means that any non-standard elements must still permit these attributes, even though using those elements means that the document is no longer HTML5-compliant. For example, HTML5-compliant browsers hide content marked as <foo hidden>...<foo>, even though <foo> is not a valid HTML element.
9 accesskey Global attributes, HTML, Reference, Référence
The accesskey global attribute provides a hint for generating a keyboard shortcut for the current element. This attribute consists of a space-separated list of characters (one single Unicode code point). The browser uses the first one that exists on the computer keyboard layout.
10 class Global attributes, HTML, Reference
The class global attribute is a space-separated list of the classes of the element. Classes allows CSS and Javascript to select and access specific elements via the class selectors or functions like the DOM method document.getElementsByClassName.
11 contenteditable Global attributes, HTML, Reference, Référence
The contenteditable global attribute is an enumerated attribute indicating if the element should be editable by the user. If so, the browser modifies its widget to allow editing. The attribute must take one of the following values:
12 contextmenu Global attributes, HTML, Reference
The contextmenu global attribute is the id of a <menu> to use as the contextual menu for this element.
13 data-* Global attributes, HTML, Reference, Référence
The data-* global attributes form a class of attributes, called custom data attributes, allows proprietary information to be exchanged between the HTML and its DOM representation that may be used by scripts. All such custom data are available via the HTMLElement interface of the element the attribute is set on. The HTMLElement.dataset property gives access to them.
The * may be replaced by any name following the production rule of xml names with the following restrictions:
14 dir Global attributes, HTML, Reference, Référence
The dir global attribute is an enumerated attribute indicates the directionality of the element's text. It can have the following values:
15 draggable Experimental, Expérimental, Global attributes, HTML, Reference, Référence
The draggable global attribute is an enumerated attribute that indicates whether the element can be dragged, using the HTML Drag and Drop API. It can have the following values:
16 dropzone Experimental, Expérimental, Global attributes, HTML, Reference, Référence
The dropzone global attribute is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API. It can have the following values:
17 hidden Global attributes, HTML, Reference, Référence
The hidden global attribute is a Boolean attribute indicating that the element is not yet, or is no longer, relevant. For example, it can be used to hide elements of the page that can't be used until the login process has been completed.
18 id Global attributes, HTML, Reference
The id global attribute defines a unique identifier (ID) which must be unique in the whole document. Its purpose is to identify the element when linking (using a fragment identifier), scripting, or styling (with CSS).
19 itemid
The Itemid attribute is the unique, global identifier of an item.
20 itemprop Attribute, metatag
The itemprop attribute is used to add properties to an item. Every HTML element can have an itemprop attribute specified, and an itemprop consists of a name-value pair. Each name-value pair is called a property, and a group of one or more properties forms an item. Property values are either a string or a URL and can be associated with a very wide range of elements including audio, embed, iframe, img, link, object, source, track, and video.
21 itemref Example, HTML, Reference
Properties that are not descendants of an element with the itemscope attribute can be associated with the item using an itemref. Itemref provides a list of element id's (not itemids) with additional properties elsewhere in the document.
22 itemscope Example, ItemType, itemscope, itemtype
Itemscope (usually) works along with itemtype to specify that the HTML contained in a block is about a particular item. Itemscope creates the Item and defines the scope of the itemtype associated with it. itemtype is a valid URL of a vocabulary (such as schema.org) that describes the item and its properties context. In the examples below the vocabulary used is from schema.org. Every HTML element may have an itemscope attribute specified. An itemscope element that doesn't have an associated itemtype has an itemref.
23 itemtype Example, HTML, Reference
Itemtype specifies the URL of the vocabulary that will be used to define itemprop's (item properties) in the data structure. Itemscope is used to set the scope of  where in the data structure the vocabulary set by itemtype will be active.
24 lang Global attributes, HTML, Reference
The lang global attribute participates in defining the language of the element, the language that is non-editable elements are written in or the language that the editable elements should be written in. The tag contains one single entry value in the format defined in the Tags for Identifying Languages (BCP47) IETF document. If the tag content is the empty string the language is set to unknown; if the tag content is not valid, regarding BCP47, it is set to invalid.
25 spellcheck Experimental, Expérimental, Global attributes, HTML, Reference, Référence
The spellcheck global attribute is an enumerated attribute defines whether the element may be checked for spelling errors. It may have the following values:
26 style Global attributes, HTML, Reference
The style global attribute contains CSS styling declarations to be applied to the element. Note that it is recommended for styles to be defined in a separate file or files. This attribute and the <style> element have mainly the purpose of allowing for quick styling, for example for testing purposes.
27 tabindex Global attributes, HTML, Reference, Référence
Note: The maximum value for tabIndex should not exceed 32767 per W3C section 17.11.1
28 title Global attributes, HTML, Reference, Référence
The title global attribute contains a text representing advisory information related to the element it belongs to. Such information can typically, but not necessarily, be presented to the user as a tooltip. Here are some typical uses of this attribute:
29 translate Experimental, Expérimental, Global attributes, HTML, Reference, Référence
The translate global attribute is an enumerated attribute that is used to specify whether an element's attribute values and the values of its Text node children are to be translated when the page is localized, or whether to leave them unchanged. It can have the following values:
30 HTML attribute reference Attribute, HTML, Reference, Référence, Web
Elements in HTML have attributes; these are additional values that configure the elements or adjust their behavior in various ways to meet the criteria the users want.
31 HTML documentation index HTML
Found 185 pages:
32 HTML element reference Basic, Element, HTML, Reference, Web
This page lists all the HTML elements.
33 <a> Content, Element, HTML, HTML text-level semantics, Reference, Web
The HTML Anchor Element (<a>) defines a hyperlink to a location on the same page or any other page on the Web. It can also be used (in an obsolete way) to create an anchor point—a destination for hyperlinks within the content of a page, so that links aren't limited to connecting simply to the top of a page.
34 <abbr> Element, HTML, HTML text-level semantics, Reference, Web, abbr
The HTML <abbr> element (or HTML Abbreviation Element) represents an abbreviation and optionally provides a full description for it. If present, the title attribute must contain this full description and nothing else.
35 <acronym> Element, HTML, HTML:Flow content, Obsolete, Reference, Référence, Web, Élément
The HTML Acronym Element (<acronym>) allows authors to clearly indicate a sequence of characters that compose an acronym or abbreviation for a word. This element has been removed in HTML5. Use <abbr> element.
36 <address> Element, HTML, HTML sections, Reference, Web
The HTML <address> element supplies contact information for its nearest <article> or <body> ancestor; in the latter case, it applies to the whole document.
37 <applet> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Applet Element (<applet>) identifies the inclusion of a Java applet.
38 <area> Content, Element, HTML, Multimedia, Reference, Web, embedded
The HTML <area> element defines a hot-spot region on an image, and optionally associates it with a hypertext link. This element is used only within a <map> element.
39 <article> Element, HTML, HTML sections, Reference, Web
The HTML <article> element represents a self-contained composition in a document, page, application, or site, which is intended to be independently distributable or reusable (e.g., in syndication). This could be a forum post, a magazine or newspaper article, a blog entry, an object, or any other independent item of content. Each <article> should be identified, typically by including a heading (<h1>-<h6> element) as a child of the <article> element.
40 <aside> Element, HTML, HTML sections, HTML5, Reference, Web
The HTML <aside> element represents a section of the page with content connected tangentially to the rest, which could be considered separate from that content. These sections are often represented as sidebars or inserts. They often contain the definitions on the sidebars, such as definitions from the glossary; there may also be other types of information, such as related advertisements; the biography of the author; web applications; profile information or related links on the blog.
41 <audio> Element, HTML, HTML embedded content, HTML5, Media, Multimedia, NeedsMobileBrowserCompatibility, Reference, Web
The HTML <audio> element is used to embed sound content in documents. It may contain one or more audio sources, represented using the src attribute or the <source> element; the browser will choose the most suitable one.
42 <b> Element, HTML, HTML text-level semantics, HTML:Flow content, HTML:Phrasing content, Reference, Web
The HTML <b> Element represents a span of text stylistically different from normal text, without conveying any special importance or relevance. It is typically used for keywords in a summary, product names in a review, or other spans of text whose typical presentation would be boldfaced. Another example of its use is to mark the lead sentence of each paragraph of an article.
43 <base> Element, HTML, HTML document metadata, Reference, Web
The HTML <base> element specifies the base URL to use for all relative URLs contained within a document. There can be only one <base> element in a document.
44 <basefont> Element, HTML, Obsolete, Reference, Web, Élément
The HTML basefont element (<basefont>) establishes a default font size for a document. Font size then can be varied relative to the base font size using the <font> element.
45 <bdi> BiDi, Element, HTML, HTML text-level semantics, Reference, Web
The HTML <bdi> Element (or Bi-Directional Isolation Element) isolates a span of text that might be formatted in a different direction from other text outside it.
46 <bdo> BiDi, Element, HTML, HTML text-level semantics, NeedsCompatTable, Reference, Web
The HTML <bdo> Element (or HTML bidirectional override element) is used to override the current directionality of text. It causes the directionality of the characters to be ignored in favor of the specified directionality.
47 <bgsound> Element, HTML, Non-standard, Reference, Référence, Web, Élément
The HTML Background Sound Element (<bgsound></bgsound>) is an Internet Explorer element associating a background sound with a page.
48 <big> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Big Element (<big>) makes the text font size one size bigger (for example, from small to medium, or from large to x-large) up to the browser's maximum font size.
49 <blink> Deprecated, Element, HTML, Obsolete, Reference, Web
The HTML Blink Element (<blink>) is a non-standard element causing the enclosed text to flash slowly.
50 <blockquote> Element, HTML, HTML:Flow content, Reference, Web
The HTML <blockquote> Element (or HTML Block Quotation Element) indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation (see Notes for how to change it). A URL for the source of the quotation may be given using the cite attribute, while a text representation of the source can be given using the <cite> element.
51 <body> Element, HTML, Reference, Sections, Web, sections
The HTML <body> Element represents the content of an HTML document. There can be only one <body> element in a document.
52 <br> Element, HTML, HTML text-level semantics, Reference, Web
The HTML element line break <br> produces a line break in text (carriage-return). It is useful for writing a poem or an address, where the division of lines is significant.
53 <button> Element, Forms, HTML, HTML forms, Intermediate, Reference, Web
The HTML <button> Element represents a clickable button.
54 <canvas> Canvas, Element, HTML, HTML scripting, HTML5, Reference, Web
The HTML <canvas> Element can be used to draw graphics via scripting (usually JavaScript). For example, it can be used to draw graphs, make photo compositions or even perform animations. You may (and should) provide alternate content inside the <canvas> block. That content will be rendered both on older browsers that don't support canvas and in browsers with JavaScript disabled.
55 <caption> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML <caption> Element (or HTML Table Caption Element) represents the title of a table. Though it is always the first descendant of a <table>, its styling, using CSS, may place it elsewhere, relative to the table.
56 <center> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Center Element (<center>) is a block-level element that can contain paragraphs and other block-level and inline elements. The entire content of this element is centered horizontally within its containing element (typically, the <body>).
57 <cite> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Citation Element (<cite>) represents a reference to a creative work. It must include the title of a work or a URL reference, which may be in an abbreviated form according to the conventions used for the addition of citation metadata.
58 <code> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Code Element (<code>) represents a fragment of computer code. By default, it is displayed in the browser's default monospace font.
59 <col> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML Table Column Element (<col>) defines a column within a table and is used for defining common semantics on all common cells. It is generally found within a <colgroup> element.
60 <colgroup> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML Table Column Group Element (<colgroup>) defines a group of columns within a table.
61 <command> HTML, HTML5, HTML:Element, HTML:Element Reference, NeedsBrowserAgnosticism, Obsolete
The command element represents a command which the user can invoke.
62 <content> Deprecated, Element, HTML, NeedsContent, Reference, Web, Web Components, web components
The HTML <content> element is used inside of Shadow DOM as an insertion point. It is not intended to be used in ordinary HTML. It is used with Web Components. It has now been replaced by the <slot> element.
63 <data> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <data> Element links a given content with a machine-readable translation. If the content is time- or date-related, the <time> must be used.
64 <datalist> Element, HTML, HTML forms, HTML5, Intermediate, Reference, Web
The HTML Datalist Element (<datalist>) contains a set of <option> elements that represent the values available for other controls.
65 <dd> Element, HTML, HTML grouping content, Reference, Web
The HTML <dd> element (HTML Description Element) indicates the description of a term in a description list (<dl>) element. This element can occur only as a child element of a description list and it must follow a <dt> element.
66 <del> Element, HTML, HTML edits, Reference, Web
The HTML Deleted Text Element (<del>) represents a range of text that has been deleted from a document. This element is often (but need not be) rendered with strike-through text.
67 <details> Element, HTML, HTML interactive elements, Reference, Web
The HTML Details Element (<details>) is used as a disclosure widget from which the user can retrieve additional information.
68 <dfn> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Definition Element (<dfn>) represents the defining instance of a term.
69 <dialog> Dialog, Element, Experimental, HTML, HTML interactive elements, Reference, Web
The HTML <dialog> element represents a dialog box or other interactive component, such as an inspector or window. <form> elements can be integrated within a dialog by specifying them with the attribute method="dialog". When such a form is submitted, the dialog is closed with a returnValue attribute set to the value of the submit button used.
70 <dir> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML directory element (<dir>) represents a directory, namely a collection of filenames.
71 <div> Element, HTML, HTML grouping content, HTML:Flow content, Reference, Web
The HTML <div> element (or HTML Document Division Element) is the generic container for flow content, which does not inherently represent anything. It can be used to group elements for styling purposes (using the class or id attributes), or because they share attribute values, such as lang. It should be used only when no other semantic element (such as <article> or <nav>) is appropriate.
72 <dl> Element, HTML, HTML grouping content, Reference, Web
The HTML <dl> element (or HTML Description List Element) encloses a list of pairs of terms and descriptions. Common uses for this element are to implement a glossary or to display metadata (a list of key-value pairs).
73 <dt> Element, HTML, HTML grouping content, Reference
The HTML <dt> element (or HTML Definition Term Element) identifies a term in a definition list. This element can occur only as a child element of a <dl>. It is usually followed by a <dd> element; however, multiple <dt> elements in a row indicate several terms that are all defined by the immediate next <dd> element.
74 <element> Element, HTML, NeedsContent, Reference, Web, Web Components
The HTML <element> element is used to define new custom DOM elements.
75 <em> Element, HTML, HTML text-level semantics, Reference, Web
The HTML element emphasis  <em> marks text that has stress emphasis. The <em> element can be nested, with each level of nesting indicating a greater degree of emphasis.
76 <embed> Element, HTML, HTML embedded content, HTML5, Reference, Web
The HTML <embed> Element represents an integration point for an external application or interactive content (in other words, a plug-in).
77 <fieldset> Element, Forms, HTML, HTML forms, Intermediate, Reference, Web
The HTML <fieldset> element is used to group several controls as well as labels (<label>) within a web form.
78 <figcaption> Element, HTML, HTML grouping content, Reference
The HTML <figcaption> element represents a caption or a legend associated with a figure or an illustration described by the rest of the data of the <figure> element which is its immediate ancestor which means <figcaption> can be the first or last element inside a <figure> block. Also, the HTML Figcaption Element is optional; if not provided, then the parent figure element will have no caption.
79 <figure> Element, HTML, HTML grouping content, Reference
The HTML <figure> element represents self-contained content, frequently with a caption (<figcaption>), and is typically referenced as a single unit. While it is related to the main flow, its position is independent of the main flow. Usually this is an image, an illustration, a diagram, a code snippet, or a schema that is referenced in the main text, but that can be moved to another page or to an appendix without affecting the main flow.
80 <font> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Font Element (<font>) defines the font size, color and face for its content.
81 <footer> Element, HTML, HTML sections, Reference
The HTML <footer> element represents a footer for its nearest sectioning content or sectioning root element. A footer typically contains information about the author of the section, copyright data or links to related documents.
82 <form> Element, Forms, HTML, HTML forms, Intermediate, Reference, Web
The HTML <form> element represents a document section that contains interactive controls to submit information to a web server.
83 <frame> Deprecated, Element, HTML, Reference, Référence, Web, Élément
<frame> is an HTML element which defines a particular area in which another HTML document can be displayed. A frame should be used within a <frameset>.
84 <frameset> Deprecated, Element, HTML, Reference, Référence, Web, Élément
<frameset> is an HTML element which is used to contain <frame> elements.
85 <head> Element, HTML, HTML document metadata, Reference, Web
The HTML <head> element provides general information (metadata) about the document, including its title and links to its scripts and style sheets.
86 <header> Element, HTML, HTML sections, Reference
The HTML <header> element represents a group of introductory or navigational aids. It may contain some heading elements but also other elements like a logo, wrapped section's header, a search form, and so on.
87 <hgroup> Element, Experimental, HTML, HTML sections, HTML5, Reference, Web
The HTML <hgroup> Element (HTML Headings Group Element) represents the heading of a section. It defines a single title that participates in the outline of the document as the heading of the implicit or explicit section that it belongs to.
88 <hr> Element, HTML, HTML grouping content, Reference
The HTML <hr> element represents a thematic break between paragraph-level elements (for example, a change of scene in a story, or a shift of topic with a section). In previous versions of HTML, it represented a horizontal rule. It may still be displayed as a horizontal rule in visual browsers, but is now defined in semantic terms, rather than presentational terms.
89 <html> Element, HTML, HTML Root Element, Reference, Web
The HTML <html> element (or HTML root element) represents the root of an HTML document. All other elements must be descendants of this element.
90 <i> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <i> Element represents a range of text that is set off from the normal text for some reason, for example, technical terms, foreign language phrases, or fictional character thoughts. It is typically displayed in italic type.
91 <iframe> Content, Element, HTML, Reference, Web, embedded
The HTML Inline Frame Element (<iframe>) represents a nested browsing context, effectively embedding another HTML page into the current page. In HTML 4.01, a document may contain a head and a body or a head and a frameset, but not both a body and a frameset. However, an <iframe> can be used within a normal document body. Each browsing context has its own session history and active document. The browsing context that contains the embedded content is called the parent browsing context. The top-level browsing context (which has no parent) is typically the browser window.
92 <image> HTML, Non-standard
The HTML <image> element was an experimental element designed to display pictures. It never was implemented and the standard <img> element must be used.
93 <img> Content, Element, Graphics, HTML, Reference, embedded
The HTML <img> element represents an image in the document.
94 <input> Element, Forms, HTML, HTML forms, HTML input tag, MakeBrowserAgnostic, NeedsBrowserCompatibility, NeedsMobileBrowserCompatibility, Reference, Web
The HTML element <input> is used to create interactive controls for web-based forms in order to accept data from the user. How an <input> works varies considerably depending on the value of its type attribute.
95 <input type="button"> Element, HTML, Input Element, Reference
The HTML <input type="button"> element is a specific version of the <input> element used to create a clickable button with no default value. It has been superseded in HTML5 by the <button> element.
96 <input type="checkbox"> Element, HTML, Reference
The HTML input element <input type="checkbox"> is an input element to enter an array of different values. The value attribute is used to define the value submitted by the checkbox. The checked attribute is used to indicate whether this item is selected. The indeterminate attribute is used to indicate that the checkbox is in an indeterminate state (on most platforms, this draws a horizontal line across the checkbox).
97 <input type="color"> Element, HTML, Reference
The <input type="color"> element is a specific version of the <input> element, used to create an input field which allow user to select color and enter color code. A color picker's UI has no required features other than accepting simple colors as text (more info).
98 <input type="date"> Element, HTML, Input Element, NeedsCompatTable, Reference
The HTML <input type="date"> element is a specific version of the <input> element used to create an input field accepting a date.
99 <input type="datetime"> Element, HTML, Reference
Technical review completed.
100 <input type="image"> Element, HTML, Reference
The <input type="image"> is a graphical submit button. You must use the src attribute to define the source of the image and the alt attribute to define alternative text. The height and width attributes are used to define the size of the image in pixels.
101 <input type="password"> Element, HTML, Reference
The HTML <input type="password"> element is a specific version of the <input> element, used to create an input field accepting a password.
102 <ins> Element, HTML, HTML edits, Reference, Web
The HTML <ins> Element (or HTML Inserted Text) HTML represents a range of text that has been added to a document.
103 <isindex> Deprecated, Element, HTML, Reference, Référence, Web, Élément
<isindex> is an obsolete HTML element that puts a text field in a page for querying the document.
104 <kbd> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Keyboard Input Element (<kbd>) represents user input and produces an inline element displayed in the browser's default monospace font.
105 <keygen> Deprecated, Element, HTML, HTML forms, HTML5, Reference, Web
The HTML <keygen> element exists to facilitate generation of key material, and submission of the public key as part of an HTML form. This mechanism is designed for use with Web-based certificate management systems. It is expected that the <keygen> element will be used in an HTML form along with other information needed to construct a certificate request, and that the result of the process will be a signed certificate.
106 <label> Element, Forms, HTML, HTML forms, Reference, Web
The HTML Label Element (<label>) represents a caption for an item in a user interface. It can be associated with a control either by placing the control element inside the <label> element, or by using the for attribute. Such a control is called the labeled control of the label element. One input can be associated with multiple labels.
107 <legend> Element, Forms, HTML, HTML forms, Reference, Web
The HTML <legend> Element (or HTML Legend Field Element) represents a caption for the content of its parent <fieldset>.
108 <li> Element, HTML, HTML grouping content, Reference
The HTML <li> element (or HTML List Item Element) is used to represent an item in a list. It must be contained in a parent element: an ordered list (<ol>), an unordered list (<ul>), or a menu (<menu>). In menus and unordered lists, list items are usually displayed using bullet points. In ordered lists, they are usually displayed with an ascending counter on the left, such as a number or letter.
109 <link> Element, HTML, HTML document metadata, Reference, Web, metadata
The HTML <link> element specifies relationships between the current document and an external resource. Possible uses for this element include defining a relational framework for navigation. This Element is most used to link to style sheets.
110 <listing> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Listing Element (<listing>) renders text between the start and end tags without interpreting the HTML in between and using a monospaced font. The HTML 2 standard recommended that lines shouldn't be broken when not greater than 132 characters.
111 <main> Element, HTML, HTML grouping content, Reference
The HTML <main> element represents the main content of  the <body> of a document or application. The main content area consists of content that is directly related to, or expands upon the central topic of a document or the central functionality of an application. This content should be unique to the document, excluding any content that is repeated across a set of documents such as sidebars, navigation links, copyright information, site logos, and search forms (unless the document's main function is as a search form).
112 <map> Element, HTML, HTML embedded content, Multimedia, Reference, Web
The HTML <map> element is used with <area> elements to define an image map (a clickable link area).
113 <mark> Element, HTML, HTML text-level semantics, HTML5, Reference, Web
The HTML Mark Element (<mark>) represents highlighted text, i.e., a run of text marked for reference purpose, due to its relevance in a particular context. For example it can be used in a page showing search results to highlight every instance of the searched-for word.
114 <marquee> Element, HTML, Obsolete, Reference, Web
The HTML <marquee> element is used to insert a scrolling area of text.
115 <menu> Element, Experimental, HTML, HTML interactive elements, Reference, Web
The HTML <menu> element represents a group of commands that a user can perform or activate. This includes both list menus, which might appear across the top of a screen, as well as context menus, such as those that might appear underneath a button after it has been clicked.
116 <menuitem> Element, Experimental, HTML, HTML interactive elements, HTML5, Reference, Web
The HTML <menuitem> element represents a command that a user is able to invoke through a popup menu. This includes context menus, as well as menus that might be attached to a menu button.
117 <meta> Document, Element, HTML, HTML document metadata, Reference, Web, metadata
The HTML <meta> element represents any metadata information that cannot be represented by one of the other HTML meta-related elements (<base>, <link>, <script>, <style> or <title>).
118 <meter> Element, HTML, HTML forms, HTML5, Reference, Web
The HTML <meter> Element represents either a scalar value within a known range or a fractional value.
119 <multicol> Deprecated, Experimental, HTML, Non-standard
The HTML <multicol> element was an experimental element designed to allow multi-column layouts. It never got any significant traction and is not implemented in any major browsers.
120 <nav> Element, HTML, HTML sections, Reference, Web
The HTML <nav> element (HTML Navigation Element) represents a section of a page that links to other pages or to parts within the page: a section with navigation links.
121 <nobr> Element, HTML, NeedsCompatTable, Non-standard, Reference, Référence, Web, Élément
The HTML <nobr> element prevents a text from breaking into a new line automatically, so it is displayed on one long line and scrolling might be necessary. This tag is not standard HTML and should not be used.
122 <noembed> Deprecated, HTML, NeedsCompatTable, Non-standard, Reference, Référence
The <noembed> element is a deprecated and non-standard way to provide alternative, or "fallback", content for browsers that do not support the <embed> element or do not support embedded content an author wishes to use.
123 <noframes> Element, HTML, Reference, Référence, Web, Élément
<noframes> is an HTML element which is used to supporting browsers which are not able to support <frame> elements or configured to do so.
124 <noscript> Element, HTML, HTML scripting, Reference, Web
The HTML <noscript> Element defines a section of html to be inserted if a script type on the page is unsupported or if scripting is currently turned off in the browser.
125 <object> Element, HTML, HTML embedded content, Reference, Web
The HTML Embedded Object Element (<object>) represents an external resource, which can be treated as an image, a nested browsing context, or a resource to be handled by a plugin.
126 <ol> Element, HTML, HTML grouping content, HTML:Flow content, Reference
The HTML <ol> Element (or HTML Ordered List Element) represents an ordered list of items. Typically, ordered-list items are displayed with a preceding numbering, which can be of any form, like numerals, letters or Romans numerals or even simple bullets. This numbered style is not defined in the HTML description of the page, but in its associated CSS, using the list-style-type property.
127 <optgroup> Element, Forms, HTML, HTML forms, Reference, Web
In a Web form, the HTML <optgroup> element  creates a grouping of options within a <select> element.
128 <option> Element, Forms, HTML, HTML forms, Reference, Web
In a Web form, the HTML <option> element is used to create a control representing an item within a <select>, an <optgroup> or a <datalist> HTML5 element.
129 <output> Element, HTML, HTML forms, HTML5, HTML:Flow content, NeedsMobileBrowserCompatibility, Reference, Web
The HTML <output> element represents the result of a calculation or user action.
130 <p> Element, HTML, HTML grouping content, Reference, Web
The HTML <p> element (or HTML Paragraph Element) represents a paragraph of text.
131 <param> Element, HTML, HTML embedded content, Reference, Web
The HTML <param> Element (or HTML Parameter Element) defines parameters for <object>.
132 <picture> Element, Experimental, HTML, Reference, Web, picture
The HTML <picture> element is a container used to specify multiple <source> elements for a specific <img> contained in it. The browser will choose the most suitable source according to the current layout of the page (the constraints of the box the image will appear in) and the device it will be displayed on (e.g. a normal or hiDPI device.)
133 <plaintext> Element, HTML, NeedsCompatTable, Obsolete, Reference, Référence, Web, Élément
The HTML Plaintext Element (<plaintext>) renders everything following the start tag as raw text, without interpreting any HTML. There is no closing tag, since everything after it is considered raw text.
134 <pre> Element, HTML, HTML grouping content, HTML:Flow content, Reference, Web
The HTML <pre> element (or HTML Preformatted Text) represents preformatted text. Text within this element is typically displayed in a non-proportional ("monospace") font exactly as it is laid out in the file. Whitespace inside this element is displayed as typed.
135 <progress> Element, HTML, HTML forms, HTML5, Reference, Web
The HTML <progress> Element is used to view the completion progress of a task. While the specifics of how it's displayed is left up to the browser developer, it's typically displayed as a progress bar. Javascript can be used to manipulate the value of progress bar.
136 <q> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Quote Element (<q>) indicates that the enclosed text is a short inline quotation. This element is intended for short quotations that don't require paragraph breaks; for long quotations use <blockquote> element.
137 <rp> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <rp> element is used to provide fall-back parenthesis for browsers non-supporting ruby annotations. Ruby annotations are for showing pronunciation of East Asian characters, like using Japanese furigana or Taiwainese bopomofo characters. The <rp> element is used in the case of lack of <ruby> element support its content has what should be displayed in order to indicate the presence of a ruby annotation, usually parentheses.
138 <rt> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <rt> Element embraces pronunciation of characters presented in a ruby annotations, which are used to describe the pronunciation of East Asian characters. This element is always used inside a <ruby> element.
139 <rtc> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <rtc> Element embraces semantic annotations of characters presented in a ruby of <rb> elements used inside of <ruby> element. <rb> elements can have both pronunciation (<rt>) and semantic (<rtc>) annotations.
140 <ruby> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <ruby> Element represents a ruby annotation. Ruby annotations are for showing pronunciation of East Asian characters.
141 <s> Element, HTML, HTML text-level semantics, NeedsNewBrowserCompatTable, Reference, Web
The HTML Strikethrough Element (<s>) renders text with a strikethrough, or a line through it. Use the <s> element to represent things that are no longer relevant or no longer accurate. However, <s> is not appropriate when indicating document edits; for that, use the <del> and <ins> elements, as appropriate.
142 <samp> Element, HTML, HTML text-level semantics, Reference, Web
The HTML <samp> element is an element intended to identify sample output from a computer program. It is usually displayed in the browser's default monotype font (such as Lucida Console).
143 <script> Element, HTML, HTML scripting, Reference, Web
The HTML Script Element (<script>) is used to embed or reference an executable script within an HTML or XHTML document.
144 <section> Element, HTML, HTML sections, Reference, Web
The HTML <section> element represents a generic section of a document, i.e., a thematic grouping of content, typically with a heading. Each <section> should be identified, typically by including a heading (<h1>-<h6> element) as a child of the <section> element.
145 <select> Element, Forms, HTML, HTML forms, Reference, Web
The HTML select (<select>) element represents a control that presents a menu of options. The options within the menu are represented by <option> elements, which can be grouped by <optgroup> elements. Options can be pre-selected for the user.
146 <shadow> Element, HTML, Reference, Web Components
The HTML <shadow> element is used as a shadow DOM insertion point. You might use it if you have created multiple shadow roots under a shadow host. It is not useful in ordinary HTML. It is used with Web Components.
147 <small> Element, HTML, HTML text-level semantics, Reference, Référence, Web, Élément
The HTML Small Element (<small>) makes the text font size one size smaller (for example, from large to medium, or from small to x-small) down to the browser's minimum font size.  In HTML5, this element is repurposed to represent side-comments and small print, including copyright and legal text, independent of its styled presentation.
148 <source> Element, HTML, HTML embedded content, Media, Reference, Web
The HTML <source> element specifies multiple media resources for either the <picture>, the <audio> or the <video> element. It is an empty element. It is commonly used to serve the same media content in multiple formats supported by different browsers.
149 <spacer> Element, HTML, Obsolete, Reference, Référence, Web, Élément
<spacer> is an HTML element which is used for inserting white spaces to web pages. It was created by NetScape for achieving same effect as a single-pixel layout GIF image, which was something web designers used to use to add white spaces to web pages, without actually using a GIF. However <spacer> is not supported by any major browser and same effects can be created with various CSS rules. In Mozilla applications, support for this element was removed in Gecko 2.0. Therefore usage of <spacer> is unnecessary.
150 <span> Element, HTML, HTML text-level semantics, HTML:Flow content, Reference, Web
The HTML <span> element is a generic inline container for phrasing content, which does not inherently represent anything. It can be used to group elements for styling purposes (using the class or id attributes), or because they share attribute values, such as lang.
151 <strike> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Strikethrough Element (<strike>) renders text with a strikethrough, or a line through it. This element is obselete in HTML5. Use the <del> instead if the element is marking an edit (deleted text), otherwise use an <s> element.
152 <strong> Element, HTML, HTML text-level semantics, Reference, Référence, Web, Élément
The HTML Strong Element (<strong>) gives text strong importance, and is typically displayed in bold.
153 <style> Element, HTML, HTML document metadata, Reference, Web
The HTML <style> element contains style information for a document, or part of a document. By default, the style instructions written inside that element are expected to be CSS.
154 <sub> Element, HTML, HTML text-level semantics, Reference, Référence, Web, Élément
The HTML Subscript Element (<sub>) defines a span of text that should be displayed, for typographic reasons, lower, and often smaller, than the main span of text.
155 <summary> Element, HTML, HTML interactive elements, Reference, Web
The HTML summary element (<summary>) is used as a summary, caption, or legend for the content of a <details> element.
156 <sup> Element, HTML, HTML text-level semantics, Reference, Référence, Web, Élément
The HTML Superscript Element (<sup>) defines a span of text that should be displayed, for typographic reasons, higher, and often smaller, than the main span of text.
157 <table> CSS, Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML Table Element (<table>) represents tabular data: information expressed via two dimensions or more.
158 <tbody> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML Table Body Element (<tbody>) defines one or more <tr> element data-rows to be the body of its parent <table> element (as long as no <tr> elements are immediate children of that table element.)  In conjunction with a preceding <thead> and/or <tfoot> element, <tbody> provides additional semantic information for devices such as printers and displays. Of the parent table's child elements, <tbody> represents the content which, when longer than a page, will most likely differ for each page printed; while the content of <thead> and <tfoot> will be the same or similar for each page printed. For displays, <tbody> will enable separate scrolling of the <thead>, <tfoot>, and <caption> elements of the same parent <table> element.  Note that unlike the <thead>, <tfoot>, and <caption> elements however, multiple <tbody> elements are permitted (if consecutive), allowing the data-rows in long tables to be divided into different sections, each separately formatted as needed.
159 <td> Element, HTML, HTML tabular data, Reference, Référence, Tables, Web, Élément
The Table cell HTML element (<td>) defines a cell of a table that contains data. It participates in the table model.
160 <template> Element, HTML, Reference, Web, Web Components
The HTML template element <template> is a mechanism for holding client-side content that is not to be rendered when a page is loaded but may subsequently be instantiated during runtime using JavaScript. 
161 <textarea> Element, Forms, HTML, HTML forms, Reference, Web
The HTML <textarea> element represents a multi-line plain-text editing control.
162 <tfoot> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML Table Foot Element (<tfoot>) defines a set of rows summarizing the columns of the table.
163 <th> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML element table header cell <th> defines a cell as a header for a group of cells of a table. The group of cells that the header refers to is defined by the scope and headers attribute.
164 <thead> Element, HTML, HTML tabular data, Reference, Référence, Tables, Web, Élément
The HTML Table Head Element (<thead>) defines a set of rows defining the head of the columns of the table.
165 <time> Element, HTML, HTML text-level semantics, HTML5, Reference, Web
The HTML <time> element represents either a time on a 24-hour clock or a precise date in the Gregorian calendar (with optional time and timezone information).
166 <title> Element, HTML, HTML document metadata, Reference, Web
The HTML <title> element defines the title of the document, shown in a browser's title bar or on the page's tab. It can only contain text, and any contained tags are ignored.
167 <tr> Element, HTML, HTML tabular data, Reference, Tables, Web
The HTML element table row <tr> defines a row of cells in a table. Those can be a mix of <td> and <th> elements.
168 <track> Element, HTML, HTML embedded content, HTML5, Multimedia, Reference, Web
The HTML <track> element is used as a child of the media elements—<audio> and <video>. It lets you specify timed text tracks (or time-based data), for example to automatically handle subtitles. The tracks are formatted in WebVTT format (.vtt files) — Web Video Text Tracks.
169 <tt> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Teletype Text Element (<tt>) produces an inline element displayed in the browser's default monotype font. This element was intended to style text as it would display on a fixed width display, such as a teletype. It probably is more common to display fixed width type using the <code> element.
170 <u> Element, HTML, HTML text-level semantics, Reference, Web
The HTML Underline Element (<u>) renders text with an underline, a line under the baseline of its content.
171 <ul> Element, HTML, HTML grouping content, Reference
The HTML <ul> element (or HTML Unordered List Element) represents an unordered list of items, namely a collection of items that do not have a numerical ordering, and their order in the list is meaningless. Typically, unordered-list items are displayed with a bullet, which can be of several forms, like a dot, a circle or a squared. The bullet style is not defined in the HTML description of the page, but in its associated CSS, using the list-style-type property.
172 <var> Element, HTML, HTML text-level semantics, Reference, Référence, Web, Élément
The HTML Variable Element (<var>) represents a variable in a mathematical expression or a programming context.
173 <video> Element, HTML, HTML embedded content, HTML5, Media, Multimedia, NeedsMobileBrowserCompatibility, Reference, Web
Use the  HTML <video> element to embed video content in a document. The video element contains one or more video sources. To specify a video source, use either the src attribute or the <source> element; the browser will choose the most suitable one.
174 <wbr> Element, HTML, HTML text-level semantics, Reference, Web
The HTML element word break opportunity <wbr> represents a position within text where the browser may optionally break a line, though its line-breaking rules would not otherwise create a break at that location.
175 <xmp> Element, HTML, Obsolete, Reference, Référence, Web, Élément
The HTML Example Element (<xmp>) renders text between the start and end tags without interpreting the HTML in between and using a monospaced font. The HTML2 specification recommended that it should be rendered wide enough to allow 80 characters per line.
176 Heading elements Element, HTML, HTML sections, Reference, Web
Heading elements implement six levels of document headings, <h1> is the most important and <h6> is the least. A heading element briefly describes the topic of the section it introduces. Heading information may be used by user agents, for example, to construct a table of contents for a document automatically.
177 nextid Deprecated, Element, HTML, Obsolete, Reference, Web
<nextid> is an obsolete HTML element that served to enable the NeXT web designing tool to generate automatic NAME labels for its anchors. It was generated by that web editing tool automatically and was not to be adjusted or entered by hand. This element has the distinction of being the first element to become one of the "Lost Tags" by being eliminated from the official public DTD's of the HTML versions. It is also probably one of the least understood of all of the early HTML elements.
178 HTML reference HTML, Landing, Reference, Web
This HTML reference describes all elements and attributes of HTML, including global attributes that apply to all elements.
179 Inline elements Beginner, HTML, HTML:Element Reference
HTML (Hypertext Markup Language) elements are usually "inline" elements or "block-level" elements. An inline element occupies only the space bounded by the tags that define the inline element. The following example demonstrates the inline element's influence:
180 Link types HTML, Link, Link types, Reference
In HTML, the following link types indicate the relationship between two documents, in which one links to the other using an <a>, <area>, or <link> element.
181 Media formats supported by the HTML audio and video elements Firefox, HTML, HTML5, Media, Reference, Video, file formats, media formats, video
The <audio> and <video> elements provide support for playing audio and video media without requiring plug-ins.
182 Microdata Composing, Example, HTML, Microdata, Reference, SEO, Search, search
Microdata is a WHATWG HTML specification used to nest metadata within existing content on web pages.[1] Search engines, web crawlers, and browsers can extract and process microdata from a web page and use it to provide a richer browsing experience for users. Search engines benefit greatly from direct access to this structured data because it allows search engines to understand the information on web pages and provide more relevant results to users. Microdata uses a supporting vocabulary to describe an item and name-value pairs to assign values to its properties. Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and microformats.
183 Microformats HTML, NeedsContent, NeedsMarkupWork
Microformats (sometimes abbreviated μF) are simple conventions used to embed semantics in HTML and quickly provide an API to be used by search engines, aggregators, and other tools. These small patterns of HTML are used for marking entities that range from fundamental to domain-specific information, such as people, organizations, events, and locations.
184 Optimizing your pages for speculative parsing Advanced, HTML, HTML5, NeedsUpdate, Web Development
Traditionally in browsers the HTML parser has run on the main thread and has blocked after a </script> tag until the script has been retrieved from the network and executed. The HTML parser in Firefox 4 and later supports speculative parsing off the main thread. It parses ahead while scripts are being downloaded and executed. As in Firefox 3.5 and 3.6, the HTML parser starts speculative loads for scripts, style sheets and images it finds ahead in the stream. However, in Firefox 4 and later the HTML parser also runs the HTML tree construction algorithm speculatively. The upside is that when a speculation succeeds, there's no need to reparse the part of the incoming file that was already scanned for scripts, style sheets and images. The downside is that there's more work lost when the speculation fails.
185 Using the application cache Advanced, App, Cache, Guide, HTML, appcache, application cache, web cache
HTML5 provides an application caching mechanism that lets web-based applications run offline. Developers can use the Application Cache (AppCache) interface to specify resources that the browser should cache and make available to offline users. Applications that are cached load and work correctly even if users click the refresh button when they are offline.

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