Cascading Style Sheets
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Example |
Cascading Style Sheets
(CSS) is a
style sheet language used
to describe the presentation (that is, the look and formatting) of a
document written in a
markup language. Its most
common application is to style
web pages written in
HTML
and
XHTML, but the language can be applied to any kind of
XML
document, including
SVG and
XUL.
CSS is designed primarily to enable the separation of document content
(written in HTML or a similar markup language) from document presentation,
including elements such as the
colors,
fonts, and
layout. This separation can improve content
accessibility, provide more flexibility and
control in the specification of presentation characteristics, enable
multiple pages to share formatting, and reduce complexity and repetition in
the structural content (such as by allowing for
tableless web design). CSS
can also allow the same markup page to be presented in different styles for
different rendering methods, such as on-screen, in print, by voice (when
read out by a speech-based browser or
screen reader) and on
Braille-based,
tactile devices. While the author of a
document typically links that document to a CSS stylesheet, readers can use
a different stylesheet, perhaps one on their own computer, to override the
one the author has specified.
CSS specifies a priority scheme to determine which style rules apply if more
than one rule matches against a particular element. In this so-called
cascade, priorities or weights are calculated and assigned to
rules, so that the results are predictable.
The CSS specifications are maintained by the
World Wide Web Consortium
(W3C). Internet media type (MIME type)
text/css
is registered for use with CSS by
RFC 2318 (March 1998).
http://www.youtube.com/watch?v=ox9oM1YMkDg (Across the Pond...) Part 1 - CSS Intro
http://www.youtube.com/watch?v=GoypQrrkkNE&NR=1&feature=fvwp Part 2 - CSS Details using HTML
http://www.learnexpression.com/Videos/EW-01/Video2/Introduction-to-Microsoft-Expression-Web-02.html
http://expression.microsoft.com/en-us/cc268158.aspx