W3C CSS2 Cascading Style Sheets, level 2 - instructional media + ...

BODY { font-size: 10pt }
H1 { font-size: 120% }
and this document fragment:
A large heading
the ’font-size’ property for the H1 element will have the computed value ’12pt’
(120% times 10pt, the parent’s value). Since the computed value of ’font-size’ is
inherited, the EM element will have the computed value ’12pt’ as well. If the user
agent does not have the 12pt font available, the actual value of ’font-size’ for both
H1 and EM might be, for example, ’11pt’.
6.2.1 The ’inherit’ value
Each property may also have a specified value of ’inherit’, which means that, for
a given element, the property takes the same computed value [p. 70] as the
property for the element’s parent. The inherited value, which is normally only
used as a fallback value, can be strengthened by setting ’inherit’ explicitly.
Example(s):
In the example below, the ’color’ and ’background’ properties are set on the
BODY element. On all other elements, the ’color’ value will be inherited and the
background will be transparent. If these rules are part of the user’s style sheet,
black text on a white background will be enforced throughout the document.
BODY {
color: black !important;
background: white !important;
}
* {
color: inherit !important;
background: transparent;
}
6.3 The @import rule
The ’@import’ rule allows users to import style rules from other style sheets. Any
@import rules must precede all rule sets in a style sheet. The ’@import’ keyword
must be followed by the URI of the style sheet to include. A string is also allowed;
it will be interpreted as if it had url(...) around it.
Example(s):
The following lines are equivalent in meaning and illustrate both ’@import’
syntaxes (one with "url()" and one with a bare string):
@import "mystyle.css";
@import url("mystyle.css");
So that user agents can avoid retrieving resources for unsupported media
types [p. 77] , authors may specify media-dependent @import rules. These
conditional imports specify comma-separated media types after the URI.
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