HTML <meta> Tag
The HTML <meta>
tag represents metadata for an HTML document.
Metadata can include document decription, keywords, author etc. It can also be used to refresh the page or set cookies.
Syntax
The <meta>
tag is written as <meta>
(no end tag) with exactly one of the name
, http-equiv
, and charset
, attributes specified.
If either name
or http-equiv
is specified, then the content
attribute must also be specified. Otherwise, it must be omitted.
Like this:
Or this:
The <meta>
tag is placed between the start and end <head>
tags.
Like this:
Examples
Character Encoding
You can use the <meta>
tag to declare the character encoding of the document. In this example, we declare the document as using UTF-8.
Keywords & Description
You can use the <meta>
tag to specify keywords for the document and/or a description.
Historically, search engines have used these elements to assist with their search results. The keywords
value can provide keywords that are relevant to the article (even if they don't appear in the article), and can even be used to provide common misspellings. The description
value can provide a description of the article. This is often displayed outside of the context of the article (such as in a search results page, email, etc) so it should provide a good, concise, overview of what the user can expect from the document.
Some search engines have disclosed that they now ignore these keywords in their algorithms. Despite this, keywords could potentially be used to good effect within a proprietary site-search function or other site functionality.
Author
You can use the <meta>
tag to specify the author of the document.
Refresh Same Page
You can use the <meta>
tag to refresh the page at regular intervals.
The following code will refresh a page every 5 minutes.
Refresh to New Page
The <iframe>
element below uses the <meta>
tag to refresh to a new page in 5 seconds.
To see this effect you might need to refresh this page.
Attributes
Attributes can be added to an HTML element to provide more information about how the element should appear or behave.
The <meta>
element accepts the following attributes.
Attribute | Description | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
name | Name for the property. Can be anything, however, HTML5 does specify some standard metadata names. Standard HTML5 metadata names include:
|
||||||||||||
content | Specifies the property's value. | ||||||||||||
charset | Specifies the character encoding used by the document. This is called a character encoding declaration. | ||||||||||||
http-equiv | Used for http response message headers. For example http-equiv can be used to periodically refresh the page, redirect to another page, etc.
Possible values include:
|
Global Attributes
The following attributes are standard across all HTML elements. Therefore, you can use these attributes with the <meta>
tag , as well as with all other HTML tags.
accesskey
autocapitalize
class
contenteditable
data-*
dir
draggable
hidden
id
inputmode
is
itemid
itemprop
itemref
itemscope
itemtype
lang
part
slot
spellcheck
style
tabindex
title
translate
For a full explanation of these attributes, see HTML 5 global attributes.
Event Handlers
Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.
onabort
onauxclick
onblur
oncancel
oncanplay
oncanplaythrough
onchange
onclick
onclose
oncontextmenu
oncopy
oncuechange
oncut
ondblclick
ondrag
ondragend
ondragenter
ondragexit
ondragleave
ondragover
ondragstart
ondrop
ondurationchange
onemptied
onended
onerror
onfocus
onformdata
oninput
oninvalid
onkeydown
onkeypress
onkeyup
onlanguagechange
onload
onloadeddata
onloadedmetadata
onloadstart
onmousedown
onmouseenter
onmouseleave
onmousemove
onmouseout
onmouseover
onmouseup
onpaste
onpause
onplay
onplaying
onprogress
onratechange
onreset
onresize
onscroll
onsecuritypolicyviolation
onseeked
onseeking
onselect
onslotchange
onstalled
onsubmit
onsuspend
ontimeupdate
ontoggle
onvolumechange
onwaiting
onwheel
Most event handler content attributes can be used on all HTML elements, but some event handlers have specific rules around when they can be used and which elements they are applicable to.
For more detail, see HTML event handler content attributes.