hgroup
elementh1
, h2
, h3
, h4
, h5
, and/or h6
elements.HTMLElement
.The hgroup
element represents the
heading of a section. The element is used to group a set of
h1
–h6
elements when the heading has
multiple levels, such as subheadings, alternative titles, or
taglines.
For the purposes of document summaries, outlines, and the like,
the text of hgroup
elements is defined to be the text
of the highest ranked
h1
–h6
element descendant of the
hgroup
element, if there are any such elements, and the
first such element if there are multiple elements with that
rank. If there are no such elements, then the text of
the hgroup
element is the empty string.
Other elements of heading content in the
hgroup
element indicate subheadings or subtitles.
The rank of an hgroup
element is the
rank of the highest-ranked h1
–h6
element descendant of the hgroup
element, if there are
any such elements, or otherwise the same as for an h1
element (the highest rank).
The section on headings and sections
defines how hgroup
elements are assigned to individual
sections.
Here are some examples of valid headings. In each case, the emphasized text represents the text that would be used as the heading in an application extracting heading data and ignoring subheadings.
<hgroup> <h1>The reality dysfunction</h1> <h2>Space is not the only void</h2> </hgroup>
<hgroup> <h1>Dr. Strangelove</h1> <h2>Or: How I Learned to Stop Worrying and Love the Bomb</h2> </hgroup>
The point of using hgroup
in these examples is to
mask the h2
element (which acts as a secondary title)
from the outline algorithm.