anchor.diff:  
       <%= form_for @product do |f| %>
   
  -
         <div class="row">
           <div class="col-sm-8">
             <div class="form-group">
  
positive.code:             <%= f.label :homepage_url, 'Product homepage url', class: 'form-label' %>
              <%= f.url_field :homepage_url, class: 'form-control', maxlength: 255 %>
            </div>
          </div>
  
          <div class="col-sm-4">
  
negative.code:             <p class="text-muted text-center">Square (1:1) images only, please.</p>
            </div>
          </div>
  
        </div>
  
        <hr>
  
        <h6>The Story</h6>
  
        <div class="row">
          <div class="col-sm-12">
  
            <div class="form-group">
              <%= f.label :lead, 'Blurb', class: 'form-label' %>
              <div class="row">
                <div class="col-md-8">
                  <%= f.text_area :lead, class: 'form-control input-lg', rows: 2 %>
                </div>
                <div class="col-md-4">
                  <p class="help-block alpha">
                    Keep it short. How would you describe your product in a tweet?
                  </p>
                </div>
              </div>
            </div>
  
            <div class="form-group">
              <%= f.label :description, 'Description', class: 'form-label' %>
              <div class="row">
                <div class="col-md-8">
                  <%= f.text_area :description, class: 'form-control', rows: 2, data: { autosize: '', 'validate-length' => 2 } %>
                </div>
                <div class="col-md-4">
                  <p class="help-block alpha">
                    Dive into the details. How did you come up with the idea? What makes it great?
                  </p>
                </div>
              </div>
            </div>
  
          </div>
        </div>
  
        <div class="form-actions">
  