dd - Definition Description

The dd element provides the definition of a term in a definition list.

dd may contain block-level elements such as p, h2, table, and dl. This allows definition lists to be nested, as in the following example:

<dl>

  <dt><a name="spanning-tree">Spanning tree</a></dt>
  <dd>
    <p>
      A spanning tree of a graph is a <a href="#tree">tree</a>
      that contains all the vertices of the graph. There are two
      main types of spanning trees:
    </p>

    <dl>
      <dt>BFS spanning tree</dt>
      <dd>
        A spanning tree formed by a breadth-first search on the graph.
      </dd>
      <dt>DFS spanning tree</dt>
      <dd>
        A spanning tree formed by a depth-first search on the graph.
      </dd>
    </dl>
  </dd>

  <dt><a name="tree">Tree</a></dt>
  <dd>
    <p>
      A tree is a connected, undirected graph without cycles.
    </p>
  </dd>

</dl>

A dd element should generally be preceded by a dt element that gives the term defined by the dd. A single definition term may have multiple definitions associated with it, and a single definition may have multiple terms.

More Information

• dd in W3C HTML 4.01 Recommendation
• dd in W3C HTML 3.2 Recommendation
• dd in HTML 2.0 Standard
• dd in WDG HTML 3.2 Reference
• dd in Learning HTML 3.2 by Examples