anchor.diff: +<div class="container">
   <section class="plants-new">
   
     <header class="page-header">
  
positive.code: 
    <div class="row">
      <div class="col-sm-6 col-sm-offset-1">
          <%= form_for @plant, url: plants_path do |form| %> 
  
            <% if form.object.errors.any? %>
              <div class="alert alert-danger">
  
negative.code:   </div>
  
  </section>
  </div>
  