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. Content categories: Metadata content. If itemprop is present: flow content phrasing content. Permitted content: None, it is an empty element. Tag omission: As it is a void element, the start tag must be present and the end tag must not be present. Permitted parent elements: Any element that accepts metadata elements. If itemprop is present: any element that accepts phrasing content. DOM interface: HTMLLinkElement Notes: A tag can occur only in the head element; however, there can be multiple occurrences of . The HTML and XHTML specifications define event handlers for the element, but it is unclear how they would be used.