anchor.diff:  <% if current_user && (current_user.admin? || current_user == @user_group.registered_by) %>
     <div class="col-sm-6 well col-sm-offset-3">
       <div class="btn-group">
  -      <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
  -        Manage User-Group <span class="caret"></span>
  -      </button>
  +      <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Manage User-Group <span class="caret"></span></button>
         <ul class="dropdown-menu" role="menu">
           <li><%= link_to 'Edit', edit_user_group_path(@user_group) %></li>
           <li><%= link_to 'Destroy', @user_group, method: :delete, data: { confirm: 'Are you sure?' } %></li>
  
positive.code:   </div>
  <% end %>
  
  <div class="col-sm-6 well col-sm-offset-3" itemscope itemtype="https://schema.org/LocalBusiness">
    <%= render 'join_leave' %>
    <center>
      <%= image_tag(@user_group.logo.present? ? @user_group.logo_url : asset_path('user_group_avatar_fallback.png'), class: 'media-object', style: 'max-height: 192px; max-width: 192px;', 'itemprop' => 'image') %>
      <h3 itemprop="name"><%= @user_group.name %></h3>
  
      <p class="small" itemprop="address" itemscope itemtype="https://schema.org/PostalAddress">
        <span itemprop="addressLocality"><%= @user_group.city %></span>,
        <span itemprop="addressRegion"><%= @user_group.state_province %></span>
  
negative.code:       <% if @user_group.topics.present? %>
          <% @user_group.topics.each do |topic| %>
            <span class="tags"><span class="glyphicon glyphicon-tag"></span> <%= topic %></span></span>
        <% end %>
      <% end %>
    <% end %>
    <hr>
    <%= link_to @user_group.homepage, target: '_blank', 'itemprop' => 'url' do %>
      <span class="glyphicon glyphicon-home"></span> <%= @user_group.name %> Homepage
    <% end %>
    <hr>
    <%= render 'twitter_button' %>
  </center>
  </div>
  
  <div class="col-sm-6 well col-sm-offset-3" id="user_group_members">
  