velvet-design/app/views/admin_panel/maintenance_mode.html.erb

<div class="row">
	<div class="span12">
		<div class="hero-unit">
		  <h1><%= @config.maintenance_title %></h1>
		  <p><%= @config.maintenance_message %></p>
		</div>
		<%= bootstrap_flash %>
	</div>
</div>