The Ultimate CSS Reference

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Tommy Olsson and Paul O'Brien

"The Ultimate CSS Reference"

Style sheets for "screen" and
"projection" media can often be combined, while style sheets for "print" or
"handheld" usually benefit from being kept separate.
An internal style sheet can sometimes be justified on a page which has presentational
needs that are very different from the rest of the site. It could also be used, along
with one or more external style sheets, for styling special elements that only occur
on one page.
What Is CSS?
Using an Internal Style Sheet During Development
It can be useful to keep your CSS in an internal style sheet during the initial
development phase, to avoid problems that can arise when style sheets are cached
by the browser. Once the design is completed, you can move the CSS to an external
style sheet.
Inline styles should normally be avoided, since they tie presentation to content in
the same unfortunate way as do presentational HTML elements such as the
deprecated and elements.
About Aural Style Sheets
Aural style sheets (media="speech") are not formally specified in CSS2.

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Tommy Olsson and Paul O'Brien

"The Ultimate CSS Reference"