HTML5 Reference

HTML <meta> tag

Definition

The <meta> tag is a self closing tag used for generic metadata information within a HTML document.

The <meta> tag must reside within the <head></head> element.

Metadata can be used to specify such things as a character set for the document, a descripton for the document, keywords relating to the content of the document, an author of the document, to refresh or redirect the page and viewport settings.

Example


<!DOCTYPE html>   <!-- The DOCTYPE declaration must always come first in any HTML document --> 
<html  lang="en">
<head>
  <title>A Title which will appear in the Windows title bar.</title>
  <!-- Some suggested meta types follow -->
  <meta charset="utf-8">
  <meta name="description" content="In this HTML tutorial reference">
  <meta name="keywords" content="HTML,CSS,JavaScript,jQuery">
  <meta name="viewport" content="width=device-width">
</head>
<body>
</body>
</html>

Attributes

The following attributes can be used with the <meta> tag.


<meta> Specific Attributes
Attribute Value Description Example
charsetcharacter-setDeclares the document's character encoding.

<meta charset="utf-8">
contentvalueSpecifies the value associated with the http-equiv or name attribute.

<meta name="Description" content="some text">
http-equiv




content-security-policy

content-type



default-style

refresh
Used to describe an equivalent HTTP-Header and the value we wish to use for it.

Use the http-equiv attribute or the name attribute, not both.

Enforces a Content Security Policy on a Document.


An alternative form of setting the charset attribute. When used in this context the attribute value must be an ASCII case-insensitive match for the string "utf-8".

Sets the name of default style spreadsheet.

Refresh the Document.

<!-- Define the MIME type for the content -->
<meta http-equiv="content-type" 
      content="text/html; charset="UTF-8">

<!-- Define a pages refresh rate (avoid this!) -->
<meta http-equiv="refresh" content="20">
namenameUsed to describe the name of the metadata in the content attribute and can be any value you choose.

Use the http-equiv attribute or the name attribute, not both.

<!-- Define a description for the content -->
<meta name="description" 
      content="some text here">

<!-- Define keywords used in the document -->
<meta name="keywords" 
      content="HTML,CSS,JavaScript,jQuery">

<!-- Define a viewport for the document -->
<meta name="viewport"
      content="width=device-width">
<meta> Global Attributes
Attribute Description Example
Common
classSpecifies a classname for the element allowing you to apply the style of the predefined class to the content.

<meta class="name">
idSpecifies a unique id for the element allowing you to apply the style of the predefined id to the content.

<meta id="name">
styleSpecifies an inline style for the element allowing you to apply the style to the contentt.

<meta style="color:red;">
titleSpecifies an inline style for the element allowing you to apply the style to the content.

<meta title="Content info">
Keyboard
accesskeySpecifies a keyboard shortcut to associate with the element.

<meta accesskey="a">
tabindexSpecifies a tab order for the element.

<meta tabindex="1">
Language
dirSpecifies the directional flow of the content.

<!-- The text will flow from left to right -->
<meta dir="ltr">
<!-- The text will flow from right to left -->
<meta dir="rtl">
langSpecifies a language code for the content of the element.

<meta lang="en">
spellcheckSpecifies an inline style for the element allowing you to apply the style to the contentt.

<!-- Valid values true and false. -->
<!-- Default inherited/browser specific. -->
<meta spellcheck="true"> 
translateSpecifies an inline style for the element allowing you to apply the style to the content.

<!-- Valid values yes and no. -->
<!-- Default yes. -->
<meta translate="no"> 
Miscellaneous
contenteditableSpecifies whether the content of the element is editable.

<!-- Valid values true and false. -->
<!-- Default inherited. -->
<meta contenteditable="true"> 
draggableSpecifies whether the element is draggable.

<!-- Valid values true and false. -->
<!-- Default browser specific. -->
<meta draggable="true">
hiddenSpecifies whether the element is not yet, or no longer, relevant.

<!-- Valid values an empty string or hidden -->
<meta hidden> 
<meta hidden="hidden"> 
<meta> Event Attributes
Attribute Description Example
Document Element
oncopyThe script to be run when the user copies the content of an element.

 <!-- Executes go() function -->
<meta oncopy="go()"> 
oncutThe script to be run when the user cuts the content of an element.

 <!-- Executes go() function -->
<meta oncut="go()">
onpasteThe script to be run when the user pastes some content into an element.

 <!-- Executes go() function -->
<meta onpaste="go()">
Drag and Drop
ondragThe script to be run when an element is dragged.

 <!-- Executes go() function -->
<meta ondrag="go()">
ondragendThe script to be run when an element has stopped being dragged.

 <!-- Executes go() function -->
<meta ondragend="go()">
ondragenterThe script to be run when an element has been dragged to a valid drop target.

 <!-- Executes go() function -->
<meta ondragenter="go()">
ondragleaveThe script to be run when an element leaves a valid drop target.

 <!-- Executes go() function -->
<meta ondragleave="go()">
ondragoverThe script to be run when an element is being dragged over a valid drop target.

 <!-- Executes go() function -->
<meta ondragover="go()">
ondragstartThe script to be run at the start of a drag operation.

 <!-- Executes go() function -->
<meta ondragstart="go()">
ondropThe script to be run when a dragged element is being dropped.

 <!-- Executes go() function -->
<meta ondrop="go()">
Form
onblurThe script to be run when the element loses focus.

 <!-- Executes go() function -->
<meta onblur="go()">
onchangeThe script to be run when object changed and attempt to leave field.

 <!-- Executes go() function -->
<meta onchange="go()">
oncontextmenuThe script to be run when a context menu is triggered.

 <!-- Executes go() function -->
<meta oncontextmenu="go()">
onfocusThe script to be run when the element gets focus.

 <!-- Executes go() function -->
<meta onfocus="go()">
oninputThe script to be run when an element gets user input.

 <!-- Executes go() function -->
<meta oninput="go()">
oninvalidThe script to be run when an element is invalid.

 <!-- Executes go() function -->
<meta oninvalid="go()">
onresetThe script to be run when a dragged element is being dropped.

 <!-- Executes go() function -->
<meta onreset="go()">
onselectThe script to be run when some or all of the contents of an object are selected.

 <!-- Executes go() function -->
<meta onselect="go()">
onsubmitThe script to be run when a form is submitted.

 <!-- Executes go() function -->
<meta onsubmit="go()">
Keyboard
onkeydownThe script to be run when an element is in focus and keyboard key is pressed down.

 <!-- Executes go() function -->
<meta onkeydown="go()">
onkeypressThe script to be run when an element is in focus and keyboard key is pressed down and released.

 <!-- Executes go() function -->
<meta onkeypress="go()">
onkeyupThe script to be run when an element is in focus and keyboard key is released.

 <!-- Executes go() function -->
<meta onkeyup="go()">
Media
onabortThe script code to be run on abort.

 <!-- Executes go() function -->
<meta onabort="go()">
oncanplayThe script to be run when a file has buffered enough so it is ready to start playing.

 <!-- Executes go() function -->
<meta oncanplay="go()">
oncanplaythroughThe script to be run when a file can be played all the way to the end without further need of buffering.

 <!-- Executes go() function -->
<meta oncanplaythrough="go()">
oncuechangeThe script to be run when the cue changes when using the track element.

 <!-- Executes go() function -->
<meta oncuechange="go()">
ondurationchangeThe script to be run when the length of the media is changed.

 <!-- Executes go() function -->
<meta ondurationchange="go()">
onemptiedThe script to be run when a media resource element suddenly becomes empty, usually due to an error.

 <!-- Executes go() function -->
<meta onemptied="go()">
onendedThe script to be run when the media has reach the end.

 <!-- Executes go() function -->
<meta onended="go()">
onloadeddataThe script to be run when media data is loaded and playback can start.

 <!-- Executes go() function -->
<meta onloadeddata="go()">
onloadedmetadataThe script to be run when metadata has been loaded.

 <!-- Executes go() function -->
<meta onloadedmetadata="go()">
onloadstartThe script to be run whenthe media resource has started loading.

 <!-- Executes go() function -->
<meta onloadstart="go()">
onpauseThe script to be run when the media resource has been paused.

 <!-- Executes go() function -->
<meta onpause="go()">
onplayThe script to be run when the media resource starts playback.

 <!-- Executes go() function -->
<meta onplay="go()">
onplayingThe script to be run when when playback has already begun.

 <!-- Executes go() function -->
<meta onplaying="go()">
onprogressThe script to be run when the browser is fetching the media data.

 <!-- Executes go() function -->
<meta onprogress="go()">
onratechangeThe script to be run when the playback rate changes.

 <!-- Executes go() function -->
<meta onratechange="go()">
onseekedThe script to be run when the seeking attribute is set to false indicating that seeking has finished.

 <!-- Executes go() function -->
<meta onseeked="go()">
onseekingThe script to be run when the seeking attribute is set to true indicating that seeking is currently active.

 <!-- Executes go() function -->
<meta onseeking="go()">
onstalledThe script to be run when the browser is unable to continue fetching media data.

 <!-- Executes go() function -->
<meta onstalled="go()">
onsuspendThe script to be run when media data has stopped before being completely loaded.

 <!-- Executes go() function -->
<meta onsuspend="go()">
ontimeupdateThe script to be run when the media resources current playback position has changed.

 <!-- Executes go() function -->
<meta ontimeupdate="go()">
onvolumechangeThe script to be run when the volume has changed or been muted.

 <!-- Executes go() function -->
<meta onvolumechange="go()">
onwaitingThe script to be run when the media resource has paused but is expected to resume.

 <!-- Executes go() function -->
<meta onwaiting="go()">
Mouse
onclickThe script to be run when when a mouse is clicked on an element.

 <!-- Executes go() function -->
<meta onclick="go()">
ondblclickThe script to be run when a mouse is double clicked on an element.

 <!-- Executes go() function -->
<meta ondblclick="go()">
onmousedownThe script to be run when he mouse button is pressed down while the cursor is over an element.

 <!-- Executes go() function -->
<meta onmousedown="go()">
onmousemoveThe script to be run when the mouse button is moved.

 <!-- Executes go() function -->
<meta onmousemove="go()">
onmouseoutThe script to be run when the mouse cursor moves off an element.

 <!-- Executes go() function -->
<meta onmouseout="go()">>
onmouseoverThe script to be run when the mouse cursor moves over an element.

 <!-- Executes go() function -->
<meta onmouseover="go()">
onmouseupThe script to be run when the mouse button is released while the cursor is over the element.

 <!-- Executes go() function -->
<meta onmouseup="go()">
onwheelThe script to be run when the mouse wheel rolls up or down over an element.

 <!-- Executes go() function -->
<meta onwheel="go()">
Scroll
onscrollThe script code to be run when the scrollbar of an element is being scrolled.

 <!-- Executes go() function -->
<meta onscroll="go()"> 
Window - NONE

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HTML Lessons - Metadata