list_groups.html

<div class="list-groups">
  {% for content in entry.contents %}
  <div class="list-group col-md-6">
    <table class="table-cv list-group-table">
      <tbody>
        <tr>
          {% if content.icon %}
          <td class="list-group-category-icon"><i class="{{ content.icon }}"></i></td> 
          {% else %}
          <td class="list-group-category-icon"></td>
          {% endif %}
          <!-- Calculate colspan number for category title -->
          {% assign i = 1 %}
          {% for item in content.items %}
            {% assign i = i | plus:1 %}
          {% endfor %}
          <td colspan="{{ i }}" class="list-group-category">{{ content.category }}</td>
        </tr>
        {% for item in content.items %}
        <tr>
          <td></td>
          <td class="list-group-name"><b>{{ item.name }}</b></td>
          {% if item.level %}
          <td class="list-group-level">{{ item.level }}</td>
          {% endif %}
          {% if item.school %}
          <td class="list-group-school">{{ item.school }}
          {% endif %}
          {% if item.time %}
          <br><span class="list-group-time">{{ item.time }}</span></td>
          {% else %}
          </td>
          {% endif %}
          {% if item.link %}
          <td class="list-group-link"><a href="{{ item.link }}" target="_blank" class="btncv z-depth-0">{% if item.linkname %}{{ item.linkname }}{% else %}DOC{% endif %}</a></td>
          {% endif %}
        </tr>
        {% endfor %}
      </tbody>
    </table>
  </div>
  {% endfor %}
</div>