anchor.diff:  <% content_for :title, "User accounts" %>
   
  -<h1>User accounts</h1>
  +<div class="page-title">
  +  <h1>User accounts</h1>
  +</div>
   
  -<div class="well">
  -
  -  <div class="row-fluid">
  -    <div class="span7">
  +  <div class="row">
  +    <div class="col-md-7">
         <div>
           <%= form_tag "", method: "get", class: "pull-left form-inline" do %>
             <label>
               <strong>Filter by name or email:</strong>
  -            <%= text_field_tag "filter", params[:filter] %>
  +            <%= text_field_tag "filter", params[:filter], class: 'form-control' %>
             </label>
             <%= submit_tag "Search", class: "btn btn-primary" %>
           <% end %>
           <%= form_tag "", method: "get" do %>
             <%= hidden_field_tag "filter" %>
  -          <%= submit_tag "Clear", class: "btn offset" %>
  +          <%= submit_tag "Clear", class: "btn btn-default" %>
           <% end %>
         </div>
       </div>
  -    <div class="span5">
  +    <div class="col-md-5">
         <div class="pull-right">
           <%= link_to "Create new user", new_user_invitation_path, class: "btn btn-success text-left" %>
           <% if can? :create, BatchInvitation %>
  -          <%= link_to "Upload a batch of users", new_admin_batch_invitation_path, class: "btn text-right" %>
  +          <%= link_to "Upload a batch of users", new_admin_batch_invitation_path, class: "btn btn-default text-right" %>
           <% end %>
         </div>
       </div>
  
positive.code:           <td>
              <% if user.invited_but_not_accepted %>
                <%= form_tag resend_user_invitation_path(user) do %>
                  <%= submit_tag "Resend signup email", :class => 'btn btn-primary' %>
                <% end %>
              <% end %>
              <% if user.access_locked? %>
  
negative.code: 
    <table class="table table-striped table-bordered">
      <thead>
        <tr class="table-header">
          <th scope="col">Name and email</th>
          <th scope="col">Role</th>
          <th scope="col">Sign-in count</th>
  