changeElementType('d-title');

  // separator
  var separator = '<hr class="section-separator" style="clear: both"/>';
  // prepend separator above appendix
  $('.d-byline').before(separator);
  $('.d-article').before(separator);

  // create d-byline
  var byline = $('<d-byline></d-byline>');
  $('.d-byline').replaceWith(byline);

  // create d-article
  var article = $('<d-article></d-article>');
  $('.d-article').wrap(article).children().unwrap();

  // move posts container into article
  $('.posts-conta