U - Underline

This element is also available in our updated HTML 4 reference. Some characteristics may have changed.

Appearance:	<U> </U>
Attributes:	None.
Contents:	TT, I, B, U, STRIKE, BIG, SMALL, SUB, SUP, EM, STRONG, DFN, CODE, SAMP, KBD, VAR, CITE, A, APPLET, IMG, FONT, BASEFONT, BR, MAP, INPUT, SELECT, TEXTAREA and plain text.
May occur in:	BODY, DIV, CENTER, BLOCKQUOTE, FORM, TH, TD, DT, DD, LI, P, H1, H2, H3, H4, H5, H6, PRE, ADDRESS, TT, I, B, U, STRIKE, BIG, SMALL, SUB, SUP, EM, STRONG, DFN, CODE, SAMP, KBD, VAR, CITE, FONT, A, APPLET, CAPTION.

U is used to indicate the enclosed text should be underlined. As most browsers use underlining to indicate hyperlinks, try to avoid this tag. It can confuse your users if they see "hyperlinks" that do not work.

Underlining is an alternative rendering for italic text (for example, on typewriters). Since HTML has an I tag for italics, use that if this is what you are using U for.

Notes:

Most graphical browsers do not support underlined text, since it makes it harder to distinguish text from hyperlinks.

HTML 3.2 Reference ~ Elements by Function ~ Elements Alphabetically

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