<%= stylesheet_link_tag "small-#{dir}", :media => "only screen and (max-width:641px)" %>
<%= stylesheet_link_tag "large-#{dir}", :media => "screen and (min-width: 642px)" %>
<%= stylesheet_link_tag "print-#{dir}", :media => "print" %>
<%= stylesheet_link_tag "small-#{dir}", :media => "only screen and (max-width:641px)" %>
<%= stylesheet_link_tag "large-#{dir}", :media => "screen and (min-width: 642px)" %>
<%= stylesheet_link_tag "print-#{dir}", :media => "print" %>