<aside class=“col-md-3” id=“sidebar”>

<div class="well">
        {% include search.html %}
</div>
<div class="list-group" id="topics"><!-- Topics --></div>
<div class="well">
        <form>
                <label>Subscribe to Updates</label>
                <div class="input-group">
              <input type="email" class="form-control" placeholder="Email address...">
              <span class="input-group-btn">
                <button class="btn btn-default" type="button">Ok</button>
              </span>
            </div>
        </form>
</div>

{% if page.tags[0] %}
        <div class="panel panel-default" id="tags">
          <div class="panel-heading">Tags</div>
          <div class="panel-body">
            {% for tag in page.tags %}
                <a class="btn btn-default" href="{{ /tags#{{tag}} }}">{{ tag }}</a>
            {% endfor %}
          </div>
        </div>
{% endif %}

</aside>