The
about element provides a brief, human-readable explanation of the nature of its parent (e.g., the file format, resolution, audience,
etc.).
The element is intended to provide a label for end users of the content -- for example, to explain the format of the content
to facilitate content selection.
optional attributes:
@about,
@by,
@class,
@content,
@continuation,
@datatype,
@desc,
@its:dir,
@its:translate,
@property,
@rel,
@resource,
@rev,
@role,
@typeof,
@xml:base,
@xml:id,
@xml:lang and
@xml:spaceone or more of
a choice of
or text
end of choice
Note that in addition to restrictions presented in the content model above,
use of this element must also respect the following requirement:
- The
about element must neither be empty nor contain only whitespace.
Such requirements take precedence over any conflicting statements in the
content model or in the lists above of allowed children and parents.