app/views/spectrums/_list.html.erb
<style>._row { clear:left;} </style>
<div class="_row">
<% spectrums.each_with_index do |spectrum,i| %>
<div class="span3 clearfix">
<% if spectrum.photo_file_name %>
<a class="image hidden-phone" href="<%= spectrum_path(spectrum.id) %>">
<img src="<%= spectrum.photo.url(:thumb) %>" class="image" style="background:#ccc;">
</a>
<% end %>
<a class="image visible-phone" style="float:left;width:50%;margin-right:10px;" href="<%= spectrum_path(spectrum.id) %>"><img src="<%= spectrum.photo.url(:thumb) %>" class="image" style="background:#ccc;"></a>
<h4><a data-transition="slide" href="<%= spectrum_path(spectrum.id) %>"><%=h truncate(spectrum.title,:length => 18) %></a></h4>
<p><a data-transition="slide" href="<%=h user_path(spectrum.author) %>"><%=h spectrum.author %></a> | <%= time_ago_in_words(spectrum.created_at) %> ago<% if spectrum.like_count.positive? %> <i class="fa fa-star"></i> <%= spectrum.like_count %><% end %></p>
</div>
<% if ((i+1)/4.0).to_i == ((i+1)/4.0) %>
</div>
<hr class="hidden-phone" style="clear:both;"/>
<div class="_row">
<% end %>
<% end %>
</div>