what is :media in application layout in .js and .css include tag???

[Fahim Patel]

        <%= stylesheet_link_tag "components/jscrollpane/jscrollpane.css", :media=>"screen" %>

<%= stylesheet_link_tag "components/tipsy/tipsy.css", :media=>"all" %>

 what is this :media?

and what is the this "all" and "screen"

if there are more than "screen" and "all" in media tag than explain it also....

thanks

Fahim Babar Patel

           

[Colin Law]

On 4 September 2012 08:01, Fahim Patel <paf...@gmail.com> wrote:
>
>
> <%= stylesheet_link_tag "components/jscrollpane/jscrollpane.css",
> :media=>"screen" %>
>
> <%= stylesheet_link_tag "components/tipsy/tipsy.css", :media=>"all" %>
>
> what is this :media?
> and what is the this "all" and "screen"
>
> if there are more than "screen" and "all" in media tag than explain it
> also....

Googling for
stylesheet media screen
brings up this as the first link
http://www.w3.org/TR/CSS2/media.html

Colin