0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
For more detailed information about doctype sniffing, including a table of which
doctypes trigger specific rendering modes in different browsers, see
http://hsivonen.iki.fi/doctype/.
Summary
Using cascading style sheets is the recommended way to control the presentation
of web pages. It allows the presentation layer to remain separate from the content
and behavior layers, which makes site maintenance much easier and reduces
bandwidth usage.
One or more external style sheets can be attached to an HTML page via link elements
or @import rules. A page can also include internal style sheets within style elements.
XML pages can be linked to external style sheets via processing instructions. Finally,
styling can be specified for an HTML element via its style attribute, but this
approach isn??™t recommended.
An external or internal style sheet can be applied for one or more output media.
21 What Is CSS?
A style sheet or group of style sheets can be persistent, preferred, or alternative, and
chosen as such by the user through a browser that supports alternative style sheets.
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