app/views/activity_categories/_cards.html.erb
<div class="row pb-4 activities-deck <%= card_deck_css %>">
<% activity_types.each do |activity_type| %>
<div class="col-sm-3">
<div class="card pr-1 h-100">
<%= link_to activity_type_path(activity_type) do %>
<%= render 'activity_types/image', activity_type: activity_type, css_class: 'activity-card-img' %>
<% end %>
<div class="card-body">
<p class="card-text">
<%= link_to activity_type.name, activity_type_path(activity_type) %>
</p>
</div>
<div class="card-footer plain">
<% if activity_type.subjects.any? %>
<%= render 'activity_types/activity_type_subjects', activity_type: activity_type %>
<% end %>
<% if activity_type.key_stages.any? %>
<%= '<br>'.html_safe if activity_type.subjects.any? %>
<%= render 'activity_types/activity_type_key_stages', activity_type: activity_type %>
<% end %>
</div>
</div>
</div>
<% end %>
</div>