app/views/layouts/application.html.erb
<!DOCTYPE html>
<html>
<head>
<title><%= yield_or_default :title, "Real Estate" %></title>
<meta name="description" content="<%= yield_or_default :description, "Real Estate Greece" %>">
<%= stylesheet_link_tag "application", :media => "all" %>
<%= csrf_meta_tags %>
</head>
<body>
<div id="wrap">
<%= render "layouts/header" %>
<div class="container">
<div class="content">
<div class="row">
<div class="span12">
<%= render "shared/flash_messages", flash: flash %>
<%= yield %>
</div>
</div>
</div>
</div>
</div>
<div id="push"></div>
<%= render "layouts/footer" %>
<%= javascript_include_tag "application" %>
<%= yield :scripts %>
</body>
</html>