orbit4-5/app/templates/orbit_bootstrap/modules/announcement/show.html.erb

<article class="s-annc  show-announcement">
  <h3 class="s-annc__show-title">{{title}}</h3>
  
  <ul class="s-annc__meta-wrap  list-unstyled">
    <li class="s-annc__date-wrap  s-annc__meta--item">
      <i class="fa fa-calendar-o"></i>
      <span class="s-annc__date" date-format="%Y-%m-%d">{{updated_at}}</span>
    </li>
    <li class="s-annc__author-wrap  s-annc__meta--item">
      <i class="fa fa-male"></i>
      <span class="s-annc__author">{{update_user}}</span>
    </li>
    <li class="s-annc__tag-wrap  s-annc__meta--item ">
      <i class="fa fa-tags"></i>
      <span data-list="tags" data-level="0">
        <a href="{{url}}"><span class="s-annc__tag  label  label-default">{{tag}}</span></a>
      </span>
    </li>
  </ul>

  <section class="s-annc__post-wrap">
    <p class="s-annc__post-body">{{body}}</p>
  </section>
  
  <ul class="s-annc__related-wrap  list-unstyled">
    <li class="s-annc__related-file">
      <i class="fa fa-fw fa-paperclip"></i>
      <div class="s-annc__related-file-list" data-list="bulletin_files" data-level="0">
        <a class="s-annc__flie-title  btn  btn-default  btn-sm" href="{{file_url}}">{{file_title}}</a>
      </div>
    </li>

    <li class="s-annc__related-link">
      <i class="fa fa-fw fa-link"></i>
      <div class="s-annc__related-link-list" data-list="bulletin_links" data-level="0">
        <a class="s-annc__link-title  btn  btn-default  btn-sm" href="{{link_url}}" target="_blank">{{link_title}}</a>
      </div>
    </li>
  </ul>

  <div class="s-annc__social">
    <div class="fb-share-button" data-type="button"></div>
    <a href="https://twitter.com/share" class="twitter-share-button" data-dnt="true" data-count="none">Tweet</a>
  </div>
</article>

{{link_to_edit}}

<script>
  (function($) {

    function hideEmptyEl(el, elParent) {
      if( el.length === 0) {
        elParent.addClass('hide');
      }
    }

    // Hiding parent element when children elements are not present
    // Tags
    hideEmptyEl($('.s-annc__tag'), $('.s-annc__tag-wrap'));
    
    // Attachments
    hideEmptyEl($('.s-annc__flie-title'), $('.s-annc__related-file'));
    
    // Links
    hideEmptyEl($('.s-annc__link-title'), $('.s-annc__related-link'));
  
  }(jQuery));
</script>