In order to define the presentation of your web pages you should use Cascading Style Sheets (CSS) in a single CSS file.
If a browser doesn't support CSS then the browser doesn't need to load a web page with useless style information.
If a browser supports CSS then you should provide only a single CSS file for all web pages. This avoids the transmission of several CSS files for the current or for different web pages. It leads to a single request for the CSS file for the current and all subsequent web pages.
Copyright © 2001-2003 by Rainer Hillebrand and Thomas Wierlemann