The rev property is similar to the rel property, but the semantics of these two properties’ link types are in the reverse direction. For example, a link from A to B with REL="X" expresses the same relationship as a link from B to A with REV="X". An anchor can have both rel and rev properties.
- Document Object Model (DOM) Level 1 Specification, Section 2.5.5
- HTML 4.01 Specification, Section 12.2
Microsoft Developer Network: [Windows Internet Explorer API reference Article]