app/views/comments/_comment.html.erb
<dt>
<%= comment.author %>
<small><%= time_ago(comment.created_at) %></small>
</dt>
<dd>
<%= comment.html.html_safe %>
<% if user_signed_in? %>
<%= link_to [comment.post, comment], method: :delete, data: { confirm: t(:sure) }, class: 'btn btn-danger btn-small', title: t(:delete) do %>
<i class="icon-remove"></i>
<%= t(:delete) %>
<% end %>
<% end %>
</dd>