From: Gavin Kistner <gavin@...>
Date: 2005-10-05T21:11:34+09:00
Subject: Re: CSS switcher in Ruby?

On Oct 4, 2005, at 11:46 PM, James Britt wrote:
> Create dynamic_css.rb (or whatever you call it)

FWIW - creating dynamic content breaks browser caching. (This should  
be obvious, but I thought I'd say it anyhow.) If your HTML is static  
and huge and your CSS small and dynamic, then creating CSS on the fly  
makes sense.

However, if you have a couple static 'theme' CSS files and your HTML  
is already dynamic, users will save bandwidth and time if your HTML  
generator rewrites the <link...> tag on the fly to pre-existing,  
static CSS files. This way, the browser can cache the CSS file  
(provided you also set up your web server to send caching HTTP headers).