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=head1 NAME
HTML::DOM::Element::Heading - A Perl class for representing heading elements in an HTML DOM tree
=head1 SYNOPSIS
  use HTML::DOM;
  $doc = HTML::DOM->new;
  $elem = $doc->createElement('h5');
  $elem->align(1); # set attribute
  $elem->align;    # get attribute
  $elem->tagName;
  # etc
=head1 DESCRIPTION
This class implements the 'h1,' 'h2,' etc. elements in an HTML::DOM tree. 
It 
implements the HTMLHeadingElement DOM interface and inherits from 
L<HTML::DOM::Element> (q.v.).
=head1 METHODS
The only method that this class implements itself, and does not inherit, is
C<align>, which returns the corresponding HTML attribute. If you pass an
argument, it will become the new value of the attribute, and the old value
will be returned.
=head1 SEE ALSO
L<HTML::DOM>
L<HTML::DOM::Element>