up
HTML 3.0 Draft
- REL=Up
- When the document forms part of a hierarchy, this link references the immediate parent of the current document.
[引用： LINK -- HTML 3.0 Draft より]
XHTML 2.0 Working Draft
- up
- Refers to the document "above" in a hierarchically structured set of documents.
[引用： LinkTypes -- XHTML 2.0 Working Draft より]