lynx-dev what are cascading style sheets?

[mattack]

Could someone give a brief description of what cascading style sheets are?

I know Lynx doesn't do them, but the following paragraph from the IMDB
newsletter piqued my interest:

>We began using the CSS (Cascading Style Sheets) specification.  
>Though the site is still usable by browsers that do not support CSS, 
>the implementation of CSS has allowed us to tap into more advanced 
>design elements and functions available in the 4.x versions or higher 
>of Netscape or Microsoft Internet Explorer.

If implementing CSS would mean I wouldn't have to page through a few pages
of links in Lynx that show up as a column on the left in a GUI browser, 
then by all means, someone implement them..  (I'm being somewhat non-serious)

(I would hope that horizontal-panning ability in Lynx would make those
links show up as a column on the left just like in a GUI browser, but 
I'm probably mistaken..)