param - Name of the parameter. a - This attribute was required for anchors defining a possible target location within a page. In HTML 4.01, id and name could be used simultaneously on a <a> element as long as they have identical values.

Usage note: This attribute is obsolete in HTML5, use the global attribute id instead. input, keygen - The name of the control, which is submitted with the form data. button - The name of the button, which is submitted with the form data. iframe - A name for the embedded browsing context (or frame). This can be used as the value of the target attribute of an <a>, <form> or <base> element, or the formtarget attribute of an <input> or <button> element. It can also be used as the value of the windowName parameter in the window.open() method. map - The name attribute gives the map a name so that it can be referenced. The attribute must be present and must have a non-empty value with no space characters. The value of the name attribute must not be a compatibility-caseless match for the value of the name attribute of another map element in the same document. If the id attribute is also specified, both attributes must have the same value. img - A name for the element. It is supported in HTML 4 only for backward compatibility. Use the id attribute instead. output - The name of the element. fieldset - The name associated with the group.
 

The label for the field set is given by the first <legend> element that is a child of this field set. form - The name of the form. In HTML 4, its use is deprecated (id should be used instead). It must be unique among the forms in a document and not just an empty string in HTML 5. area - Define a names for the clickable area so that it can be scripted by older browsers. textarea - The name of the control. select - This attribute is used to specify the name of the control. object - The name of valid browsing context (HTML5), or the name of the control (HTML 4). meta - This attribute defines the name of a piece of document-level metadata. It should not be set if one of the attributes itemprop, http-equiv or charset is also set. This metadata name is associated with the value contained by the content attribute. The possible values for the name attribute are: - application-name defines the name of the application running in the web page. Note: - Browsers may use this to identify the application. It is different from the <title> element, which usually contain the application name, but may also contain information like the document name or a status. - Simple web pages shouldn't define an application-name. - author defines the name of the document's author. - description contains a short and accurate summary of the content of the page. Several browsers, like Firefox and Opera, use this as the default description of bookmarked pages. - generator contains the identifier of the software that generated the page. - keywords contains words relevant to the page's content, separated by commas. - referrer controls the Referer HTTP header attached to requests sent from the document:

Values for the content attribute of <meta name="referrer">

no-referrer	Do not send a HTTP Referer header.
origin	Send the origin of the document.
no-referrer-when-downgrade	Send the origin as referrer to URLs as secure as the current page, (https→https), but don't send a referrer to less secure URLs (https→http). This is the default behavior.
origin-when-crossorigin	Send the full URL (stripped of parameters) for same-origin requests, but only send the origin for other cases.
unsafe-URL	Send the full URL (stripped of parameters) for same-origin or cross-origin requests.

- Some browsers support the deprecated values always, default, and never for referrer. - Dynamically inserting <meta name="referrer"> (with document.write or appendChild) makes referrer behavior unpredictable. - When several conflicting policies are defined, the no-referrer policy is applied. The attribute may also have a value taken from the extended list defined on WHATWG Wiki MetaExtensions page. Although none have been formally accepted yet, a few commonly used names are: Finally, a few names are in common use, though not in the process of being standardized: - creator defines the name of the creator of the document, such as an organization or institution. If there are more than one, several <meta> elements should be used. - googlebot, a synonym of robots, but is only followed by Googlebot, the indexing crawler for Google. - publisher defines the name of the document's publisher. - robots defines the behavior that cooperative crawlers, or "robots", should use with the page. It is a comma-separated list of the values below:

Values for the content of <meta name="robots">

Value	Description	Used by
index	Allows the robot to index the page (default).	All
noindex	Requests the robot to not index the page.	All
follow	Allows the robot to follow the links on the page (default).	All
nofollow	Requests the robot to not follow the links on the page.	All
none	Equivalent to noindex, nofollow	Google
noodp	Prevents using the Open Directory Project description, if any, as the page description in search engine results.	Google, Yahoo, Bing
noarchive	Requests the search engine not cache the page content.	Google, Yahoo, Bing
nosnippet	Prevents displaying any description of the page in search engine results.	Google, Bing
noimageindex	Requests this page not appear as the referring page of an indexed image.	Google
nocache	Synonym of noarchive.	Bing

Notes: - Only cooperative robots follow these rules. Do not expect to prevent e-mail harvesters with them. - The robot still needs to access the page in order to read these rules. To prevent bandwidth consumption, use a robots.txt file. - If you want to remove a page, noindex will work, but only after the robot visits the page again. Ensure that the robots.txt file is not preventing revisits. - Some values are mutually exclusive, like index and noindex, or follow and nofollow. In these cases the robot's behavior is undefined and may vary between them. - Some crawler robots, like Google, Yahoo, and Bing, support the same values for the HTTP header X-Robot-Tags; this allows non-HTML documents like images to use these rules. - slurp, a synonym of robots, but only for Slurp, the crawler for Yahoo Search. - viewport, which gives hints about the size of the initial size of the viewport. Used by mobile devices only.

Values for the content of <meta name="viewport">

Value	Possible subvalues	Description
width	A positive integer number, or the text device-width	Defines the pixel width of the viewport, or allows the viewport to adapt to the device's screen width.
height	A positive integer, or the text device-height	Defines the height of the viewport. Not used by any browser.
initial-scale	A positive number between 0.0 and 10.0	Defines the ratio between the device width (device-width in portrait mode or device-height in landscape mode) and the viewport size.
maximum-scale	A positive number between 0.0 and 10.0	Defines the maximum amount to zoom in. It must be greater or equal to the minimum-scale or the behavior is undefined. Browser settings can ignore this rule, and iOS10+ ignores it by default.
minimum-scale	A positive number between 0.0 and 10.0	Defines the minimum zoom level. It must be smaller or equal to the maximum-scale or the behavior is undefined. Browser settings can ignore this rule, and iOS10+ ignores it by default.
user-scalable	yes or no	If set to no, the user is not able to zoom in the webpage. The default is yes. Browser settings can ignore this rule, and iOS10+ ignores it by default.

Specification	Status	Comment
CSS Device Adaptation The definition of '<meta name="viewport">' in that specification.	Working Draft	Non-normatively describes the Viewport META element

See also: @viewport Notes: - Though unstandardized, this declaration is respected by most mobile browsers due to de-facto dominance. - The default values may vary between devices and browsers. - To learn about this declaration in Firefox for Mobile, see this article.