This Physical formatting element applies underlining to text.
This was a proposed element in early HTML 2 drafts but did not make it
to the final specification. It was included however in the subsequent HTML
proposals.
DTD Note: The underline element was considered a
"Proposed Element" in some early versions of the 2.0 DTD, but
was not listed in the final 2.0 DTD specification at all. It has since
re-appeared in later drafts and specifications.
This element is gaining wide support and has become fairly safe to
use when authoring.
[Test]
As mentioned below, use of this element can possibly generate
confusion with hyperlinks which generally carry a characteristic
underlining effect.
Browser Peculiarities
Netscape's browsers were notable for not supporting this element
until the v3.0 Beta 5 release. A probable reason for the omission
could have been to restrict confusion with the characteristic underlining
of hyperlinks.