Lately, I have taken interest in discussing methods of creating sexy stylesheets. While CSS can be used to create sexy websites, writing CSS can actually be an artform by itself. The way in which CSS is created, structured, and maintained can be a thing of beauty.

So how does one create sexy stylesheets? What characteristics would your stylesheets have?

A few months ago, I had the opportunity to present on this very topic at Web Visions 2007 conference in Portland, Oregon. In preparing my presentation, I surveyed twelve people who work in web design and development. The results of this survey, combined with my own work experiences helped me to compile a list of essentials to remember when creating stylesheets.

01. Keep CSS out of the markup.

Linking and/or importing stylesheets would seem to be a no-brainer to the intermediate or advanced CSS developer, but I want to stress why this is so important. I’ve seen many sites start out with clean, well-organized CSS files but then get littered as time goes by, with embedded or even inline styles (due to fast updates needed on short deadlines, or possibly sometimes even pure laziness).

Imagine that you are working on an extremely large-scale website with hundreds of ways content can appear. You have fast deadlines, so you opt for making “quick fixes” or updates by using embedded or inline CSS. Years go by, and this habit continues… Until one day you’re told the site is being completely redesigned (but all the content is to remain the same), and you only have a week to build it (including testing).

Normally, this would have been a fairly simple task of updating the stylesheet(s). Except you have years worth of “quick fixes” scattered throughout the site ââ