Bootstrap thumbnails index rails

gistfile1.txt

<ul class='thumbnails' id='posts'>

  <% @posts.each do |post| %>
    <div id='post'>
      <li class='span5'>
        <div class='thumbnail'>
        <%= image_tag post.picture_url, :width => '100%' if post.picture.present?%> 

          <h3><%= link_to post.title, post %></h3>
        </div>
       </div>
     </li>
  </div>

<% end %>


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