anchor.diff:  
           .form-group.col-xs-2
             label.sr-only(for="category") Listing category
  -          select.form-control(name='category', placeholder='Category')
  +          select.form-control(name='category', data-placeholder='Category')
               <% for ( i in categories ) { %>
               option(value='{ categories[i].cat }') { categories[i].title }
               <% } %>
  
positive.code: 
        .row
          .col-md-12
            #errorMsg.alert.alert-warning.alert-dismissable(style='display:none')
              button(type="button" class="close" data-dismiss="alert" aria-hidden="true") &times;
              span.errorText
  
  
  
negative.code:       form#searchForm.form-inline(action='/search', role='form')
          .form-group.col-xs-4
            label.sr-only(for="query") Search query
            input.form-control( type='text', name='query', placeholder='Search')
  
          .form-group.col-xs-2
            label.sr-only(for="region") Region
            select.form-control(name='region', data-placeholder='Location')
              <% for (state in regions) { %>
              option(disabled) { state }
              <% region = regions[state] %>
  