Sends XHTML to the viewer if available.

Attribute Description
Append If “true”, the XHTML is appended to the XHTML in the viewer. Otherwise, the content in the viewer is replaced.
(inner xml) XHTML to be sent to the viewer


  <p>We must forever conduct our struggle on the high plane of <u>dignity and discipline</u>.</p>
  <p>We must not allow our creative protest to degenerate into physical violence.</p>
  <p>Again and again, we must rise to the majestic heights of meeting physical force with <u>soul force</u>.</p>