Actually, such a standard exists: http://www.w3.org/TR/REC-html40/struct/links.html#h-12.1.2 http://www.w3.org/TR/REC-html40/struct/links.html#h-12.1.2. I thin

Actually, such a standard exists: http://www.w3.org/TR/REC-html40/struct/links.html#h-12.1.2 http://www.w3.org/TR/REC-html40/struct/links.html#h-12.1.2. I think Opera is (or was) the only browser to support this.