If the mmedium is the message then the users
choice may affect how your message is received.
Web style sheets are a form of separation of presentation
and content for web design in which the markup of a webpage
contains the page's verbal message and structure, but does
not define its visual layout (style). Instead, the style is
defined in an separate stylesheet file using a language
such as CSS. This design approach is identified as a
"separation" because it supersedes the traditional
methodology in which a page's markup contained information
both style and structure.
The benefits of delivering the information separately
include: faster, more easily maintained, more accessible, more customised, consistent and portable contents.