+@table @asis
+@item Required attribute: @code{visibility}
+Either @code{visible} or @code{hidden}, this indicates whether the
+container's content is displayed.
+
+@item Optional attribute: @code{text-align}
+Presumably indicates the alignment of text within the container. The
+only observed value is @code{left}. Observed with nested @code{table}
+and @code{text} elements.
+
+@item Optional attribute: @code{width}
+The width of the container in the form @code{@var{n}px}, e.g.@:
+@code{1097px}.
+@end table
+