An a element may be followed by
an ol ordered list representing a subsidiary content level below that heading (e.g., all the subsection headings of a section).
' The a element may optionally be followed by
an ol ordered list representing a subsidiary content level below that heading (e.g., all the subsection headings of a section).
The span element must be followed by
an ol ordered list: it can not be used in «leaf» li elements.
' The optional heading must be followed by a single
ol ordered list; no other elements are permitted as direct children of the nav element.
Not exact matches
I agree with QB and
OL heading the
list of priorities, but I think the
order of holes to fill goes thusly:
The
ol tag defines an
ordered list.
' The
ol element represents an
ordered list.