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• CSS1
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Argo (web browser) History
Although this early adoption SSP had
other advanced features that could not be
integrated in CSS1 and had to wait for
CSS2
1
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CSS3 - Difficulty with adoption
1
Internet Explorer for Mac|Internet Explorer
5.0 for the Apple Macintosh|Macintosh,
shipped in March 2000, was the first
browser to have full (better than 99
percent) CSS1 support, surpassing Opera
(web browser)|Opera, which had been the
leader since its introduction of CSS
support 15 months earlier
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CSS3 - Variations
1
CSS has various levels and profiles. Each
level of CSS builds upon the last, typically
adding new features and typically denoted as
CSS1, CSS2, CSS3, and CSS4. Profiles are
typically a subset of one or more levels of
CSS built for a particular device or user
interface. Currently there are profiles for
mobile devices, printers, and television sets.
Profiles should not be confused with media
types, which were added in CSS2.
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CSS3 - CSS 1
1
The first CSS specification to become
an official W3C Recommendation is
CSS level 1, published in December
1996.W3C:
[http://www.w3.org/TR/CSS1
Cascading Style Sheets, level 1] CSS 1
specification Among its capabilities
are support for
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CSS3 - CSS 2
1
CSS level 2 specification was developed
by the W3C and published as a
recommendation in May 1998. A superset
of CSS1, CSS2 includes a number of new
capabilities like absolute, relative, and
fixed positioning of elements and z-index,
the concept of media types, support for
aural style sheets and bidirectional text,
and new font properties such as shadows.
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Netscape (web browser) - Netscape Communicator (versions 4.0–4.8)
1
This new version, more or less based on
Netscape Navigator 3 Code, updated and
added new features (such as support of
certain CSS1 elements, minimal dynamic
font support and the proprietary object
element)
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The Web Standards Project - Organization
By 2001, the group had achieved its
primary goal of persuading Microsoft,
Netscape, Opera, and other browser
makers to accurately and completely
support HTML 4.01/XHTML 1.0, CSS1,
and ECMAScript
1
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Quirks mode - Mode verification
In most browsers, the Document
Object Model extension
document.compatMode indicates the
rendering mode for the current page.
In standards mode and almoststandards mode,
document.compatMode contains the
value CSS1Compat, while in quirks
mode it equals BackCompat.
1
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Mozilla Application Suite - Standards support
1
Mozilla had implemented most of CSS Level
2 and some of the not-yet-completed CSS
Level 3 standard. It was among the first
browsers to pass the original [
http://www.w3.org/Style/CSS/Test/CSS1/curr
ent/test5526c.htm Box Acid Test], although it
doesn't fully pass the more rigorous Acid2
test for HTML, CSS, and PNG standards
support. Other browsers based on newer
versions of Mozilla's core technology,
however, pass the Acid2 test.
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Internet Explorer box model bug - Background
The Cascading Style Sheets (CSS)
specification describes how elements of web
pages are displayed by graphical browsers.
Section 4 of the CSS1 specification defines a
formatting model that gives block-level
elements—such as p and blockquote—a
width and height, and three levels of boxes
surrounding it: padding, borders, and
margins. While the specification never uses
the term box model explicitly, the term has
become widely used by web developers and
web browser vendors.
1
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Internet Explorer box model bug - Bug
1
According to the CSS1 specification,
released by the World Wide Web
Consortium (W3C) in 1996 and revised
in 1999, when a width or height is
explicitly specified for any block-level
element, it should determine only the
width or height of the visible element,
with the padding, borders, and
margins applied afterward
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Argo (web browser) - History
Although this early adoption SSP had
other advanced features that could not be
integrated in CSS1 and had to wait for
CSS2
1
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Anglo-Saxon paganism
1
A variant of the Germanic paganism found
across much of north-western Europe, it
encompassed a heterogeneous variety of
disparate beliefs and cultic
practices.#CSS10|Carver, Sanmark and
Semple 2010
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Kerning - Kerning perception
1
For instance, on webpages with CSS1, a
standard dating back to 1996, the letterspacing property (illustrated) offers some
control for lost or enhance kerning
perception mdash; kerning can be
simulated with non-uniform spacing
between letters. The standard CSS3
(scheduled for 2014) includes the fontkerning property, which allows a complete
control of kerning.
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Standards compliant
1
The tests developed by WaSP are called
Acid1, Acid2, and Acid3, with each testing
CSS1, CSS2, and CSS2+ (CSS2 + ClientSide Scripting), respectively.
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Acid1 - History
1
In 1999, the test was incorporated into the
CSS1 test
suite.[http://www.w3.org/Style/CSS/Test/C
SS1/19990126/sec5526c.htm CSS1 Test
Suite: 5.5.26 clear] The text used in Acid1
is an allusion to T
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Acid2
Named after the acid test (gold)|acid
test for gold, it was developed in the
spirit of Acid1, a relatively narrow test
of compliance with the Cascading Style
Sheets 1.0 (CSS1) Technical
standard|standard, and was released
on 13 April 2005
1
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Alcohol metabolism - Acetic acid to acetyl-CoA
1
The second enzyme is ACSS1 (acetyl CoA
synthase-2) which is localized to
mitochondria and is used for energy
generation via the tricarboxylic acid cycle
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Letter-spacing - Changing the Kerning perception
Example on webpages: with CSS1, a
standard of 1996, the letter-spacing
property (illustrated) offer some control
for lost or enhance kerning perception
mdash; kerning can be simulated with
non-uniform spacing between letters
1
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