Meant to indicate text to be typed in at a computer keyboard in HTML documents, <KBD> ... <KBD> changes the type style for all the text it contains to a mono-spaced font.
None.
<KBD> ... </KBD> is legal within:
<A> <ADDRESS> <B> <CITE> <CODE> <DD> <DT> <EM> <H*> <I> <LI> <P> <PRE> <SAMP> <STRONG> <TT> <VAR>
The following markup can be used within <KBD> ... </KBD>
<A> <B> <BR> <CITE> <CODE> <EM> <I> <IMG> <SAMP> <STRONG> <TT> <VAR>
Whenever you want to illustrate text to be typed in on a computer, use <KBD> ... <KBD> to set it off from the body text.
To get a directory from a DOS prompt type: <KBD>dir</KBD>