single-fabric.php

<!-- if the page has children: we want to display them in a gallery of featured images -->

  <?php

  if ($children = get_children(array( 'post_parent' => $post->ID ))){

    foreach ($children as $child){
      $link = get_permalink($child->ID);
      echo "<div class='col-md-4 text-center fabric-child'>";
      echo "<a href='$link'>";
      echo get_the_post_thumbnail($child->ID, 'medium');
      echo "<p>$child->post_title</p>";
      echo "</a>";
      echo "</div>";

    }
  }