app/views/errors/over_capacity.html.erb
<% @page_title = "We're sorry, but we're over capacity (503)" %>
<div class="container error_page">
<div class="flash_messages">
<div class="row">
<div class="col-sm-12">
<div class="alert alert-danger">
We're sorry, but we're over capacity. Please try back again in a few minutes.
</div>
</div>
</div>
</div>
<%= image_tag "photos/503.jpg", class: "center-block" %>
<p class="text-center"><small>Photo: <a href="http://cheryljwillson.com/gallery/main.php">Cheryl J. Willson</a></small></p>
</div>