Permitted contents #

Permitted attributes #

ⓘ global attributes

Any attributes permitted globally.

ⓘ href = non-empty URL potentially surrounded by spaces #

A URL that provides the destination of the link.

ⓘ rel = set of space-separated tokens #

A set of tokens that specify the relationship between the document containing the link and the destination indicated by the link.

Each token must be either a link type defined in the HTML5 specification or a registered extension to the predefined set of link types [HTML5].

ⓘ hreflang = language tag #

The language of the destination of the link.

A valid language tag as defined in [BCP 47].

ⓘ media = media-query list #

The media for which the destination of the link was designed.

A valid media query list as defined in [Media Queries].

ⓘ type = MIME type #

The MIME type of the destination of the link.

A string that identifies a valid MIME media type as defined in [RFC 2046].

ⓘ sizes = d:string "any" or sizes NEW #

The sizes of icons for visual media.

An unordered set of unique space-separated tokens, each of which must be one of the following:

• the literal string "any"
• two valid non-negative integers that do not have a leading "0" character and that are separated by a single "x" character.

Additional constraints and admonitions #

• The “target” attribute on the “link” element is obsolete. You can safely omit it.
• The “urn” attribute on the “link” element is obsolete. Specify the preferred persistent identifier using the “href” attribute instead.
• The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
• The “methods” attribute on the “link” element is obsolete. Use the HTTP OPTIONS feature instead.
• The “rev” attribute on the “link” element is obsolete. Use the “rel” attribute instead, with a term having the opposite meaning.

Permitted parent elements #

any element that can contain metadata elements, noscript