li elementol elements.ul elements.menu elements.ol element: valueinterface HTMLLIElement : HTMLElement {
           attribute long value;
};
   The li element represents a list
  item. If its parent element is an ol, ul,
  or menu element, then the element is an item of the
  parent element's list, as defined for those elements. Otherwise, the
  list item has no defined list-related relationship to any other
  li element.
If the parent element is an ol element, then the
  li element has an ordinal value.
The value
  attribute, if present, must be a valid integer giving
  the ordinal value of the list item.
If the value attribute is
  present, user agents must parse it as an integer, in order to determine the
  attribute's value. If the attribute's value cannot be converted to a
  number, the attribute must be treated as if it was absent. The
  attribute has no default value.
The value attribute is
  processed relative to the element's parent ol element
  (q.v.), if there is one. If there is not, the attribute has no
  effect.
The value IDL
  attribute must reflect the value of the value content attribute.
The following example, the top ten movies are listed (in reverse
   order). Note the way the list is given a title by using a
   figure element and its figcaption
   element.
<figure> <figcaption>The top 10 movies of all time</figcaption> <ol> <li value="10"><cite>Josie and the Pussycats</cite>, 2001</li> <li value="9"><cite lang="sh">Црна мачка, бели мачор</cite>, 1998</li> <li value="8"><cite>A Bug's Life</cite>, 1998</li> <li value="7"><cite>Toy Story</cite>, 1995</li> <li value="6"><cite>Monsters, Inc</cite>, 2001</li> <li value="5"><cite>Cars</cite>, 2006</li> <li value="4"><cite>Toy Story 2</cite>, 1999</li> <li value="3"><cite>Finding Nemo</cite>, 2003</li> <li value="2"><cite>The Incredibles</cite>, 2004</li> <li value="1"><cite>Ratatouille</cite>, 2007</li> </ol> </figure>
The markup could also be written as follows, using the reversed attribute on the
   ol element:
<figure> <figcaption>The top 10 movies of all time</figcaption> <ol reversed> <li><cite>Josie and the Pussycats</cite>, 2001</li> <li><cite lang="sh">Црна мачка, бели мачор</cite>, 1998</li> <li><cite>A Bug's Life</cite>, 1998</li> <li><cite>Toy Story</cite>, 1995</li> <li><cite>Monsters, Inc</cite>, 2001</li> <li><cite>Cars</cite>, 2006</li> <li><cite>Toy Story 2</cite>, 1999</li> <li><cite>Finding Nemo</cite>, 2003</li> <li><cite>The Incredibles</cite>, 2004</li> <li><cite>Ratatouille</cite>, 2007</li> </ol> </figure>
If the li element is the child of a
  menu element and itself has a child that defines a
  command, then the
  li element will match the :enabled and :disabled pseudo-classes in the
  same way as the first such child element does.
While it is conforming to include heading elements
  (e.g. h1) inside li elements, it likely
  does not convey the semantics that the author intended. A heading
  starts a new section, so a heading in a list implicitly splits the
  list into spanning multiple sections.