element and the current document. Valid for the element, it imports an external resource to be used as a stylesheet. Gives the address of the pingback server that handles pingbacks to the current document. Gives a tag (identified by the given address) that applies to the current document. The type attribute is not needed as it's a text/css stylesheet, as that is the default value. Nofollow is a specific tag in HTML that allows for manipulation of the status of some hyperlinks. author: It defines the author of the document. When the appropriate HTML Meta data profile is in use, the "home" type can be used alongside standard Link Types. The attribute can be used by automated systems, or can be presented to a user in a different way. If there are multiple s, the browser uses their media attribute, type and sizes attributes to select the most appropriate icon. The linked page SHOULDexist. Specifies or returns the relationship between the current document and the destination of an anchor or link. Valid on the , ,