code: function expandSelector( that, node ) {
  			return !( isTextNode( node )
  				|| isComment( node )
  				|| isFlowBreaker( node )
  				|| isLine( that, node )
  				|| ( node.type == CKEDITOR.NODE_ELEMENT && node.$ && node.is( 'br' ) ) );
  		}
docs: This is default element selector used by the engine.