55 < head >
66 < title > Cascading Style Sheets (CSS) Snapshot 2007</ title >
77 <!-- <link rel="stylesheet" type="text/css" href="default.css"> -->
8- < link href ="http://www.w3.org/StyleSheets/TR/W3C-CR .css " rel =stylesheet
8+ < link href ="http://www.w3.org/StyleSheets/TR/W3C-ED .css " rel =stylesheet
99 type ="text/css ">
1010
1111 < body >
1515
1616 < h1 > Cascading Style Sheets (CSS) Snapshot 2007</ h1 >
1717
18- < h2 class ="no-num no-toc " id =longstatus-date > W3C Candidate Recommendation
19- 15 November 2010</ h2 >
18+ < h2 class ="no-num no-toc " id =w3c-note-date > W3C Note 26 April 2011</ h2 >
2019
2120 < dl >
22- < dt > This version:
21+ < dt > This version:</ dt >
22+ <!-- <dd><a href="http://www.w3.org/TR/2011/WD-css-beijing-20110426/">http://www.w3.org/TR/2011/CR-css-beijing-20110426/</a></dd> -->
2323
2424 < dd > < a
25- href ="http://www .w3.org/TR/2010/CR- css-beijing-20101115 / "> http://www .w3.org/TR/2010/CR- css-beijing-20101115 /</ a >
25+ href ="http://dev .w3.org/csswg/ css-2007 / "> http://dev .w3.org/csswg/ css-2007 /</ a >
2626
2727 < dt > Latest version:
2828
@@ -41,7 +41,7 @@ <h2 class="no-num no-toc" id=longstatus-date>W3C Candidate Recommendation
4141 <!--begin-copyright-->
4242 < p class =copyright > < a
4343 href ="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright "
44- rel =license > Copyright</ a > © 2010 < a
44+ rel =license > Copyright</ a > © 2011 < a
4545 href ="http://www.w3.org/ "> < acronym title ="World Wide Web
4646 Consortium "> W3C</ acronym > </ a > < sup > ®</ sup > (< a
4747 href ="http://www.csail.mit.edu/ "> < acronym title ="Massachusetts Institute
@@ -70,46 +70,36 @@ <h2 class="no-num no-toc" id=abstract>Abstract</h2>
7070 < h2 class ="no-num no-toc " id =status > Status of this document</ h2 >
7171 <!--begin-status-->
7272
73- < p > < em > This section describes the status of this document at the time of
74- its publication. Other documents may supersede this document. A list of
75- current W3C publications and the latest revision of this technical report
76- can be found in the < a href ="http://www.w3.org/TR/ "> W3C technical reports
77- index at http://www.w3.org/TR/.</ a > </ em >
73+ < p > This is a public copy of the editors' draft. It is provided for
74+ discussion only and may change at any moment. Its publication here does
75+ not imply endorsement of its contents by W3C. Don't cite this document
76+ other than as work in progress.
7877
79- < p > This document was produced by the < a
80- href ="http://www.w3.org/Style/CSS/members "> CSS Working Group</ a > as a < a
81- href ="http://www.w3.org/Consortium/Process/tr#RecsCR "> Candidate
82- Recommendation.</ a >
83-
84- < p > A Candidate Recommendation is a document that has been widely reviewed
85- and is ready for implementation. W3C encourages everybody to implement
86- this specification and return comments to the (< a
78+ < p > The (< a
8779 href ="http://lists.w3.org/Archives/Public/www-style/ "> archived</ a > ) public
8880 mailing list < a
89- href ="mailto:www-style@w3.org?Subject=%5Bcss-beijing %5D%20PUT%20SUBJECT%20HERE ">
81+ href ="mailto:www-style@w3.org?Subject=%5Bcss-2007 %5D%20PUT%20SUBJECT%20HERE ">
9082 www-style@w3.org</ a > (see < a
91- href ="http://www.w3.org/Mail/Request "> instructions</ a > ). When sending
92- e-mail, please put the text “css-beijing” in the subject,
93- preferably like this: “[<!----> css-beijing<!----> ]
94- < em > …summary of comment…</ em > ”
83+ href ="http://www.w3.org/Mail/Request "> instructions</ a > ) is preferred for
84+ discussion of this specification. When sending e-mail, please put the text
85+ “css-2007” in the subject, preferably like this:
86+ “[<!----> css-2007<!----> ] < em > …summary of
87+ comment…</ em > ”
9588
96- < p > Publication as a Candidate Recommendation does not imply endorsement by
97- the W3C Membership. This is a draft document and may be updated, replaced
98- or obsoleted by other documents at any time. It is inappropriate to cite
99- this document as other than work in progress.
89+ < p > This document was produced by the < a href ="/Style/CSS/members "> CSS
90+ Working Group</ a > (part of the < a href ="/Style/ "> Style Activity</ a > ).
10091
10192 < p > This document was produced by a group operating under the < a
102- href ="http://www.w3.org/Consortium/Patent-Policy-20040205/ "> 5 February
103- 2004 W3C Patent Policy</ a > . W3C maintains a < a
104- href ="http://www.w3.org/2004/01/pp-impl/32061/status "
93+ href ="/Consortium/Patent-Policy-20040205/ "> 5 February 2004 W3C Patent
94+ Policy</ a > . W3C maintains a < a href ="/2004/01/pp-impl/32061/status "
10595 rel =disclosure > public list of any patent disclosures</ a > made in
10696 connection with the deliverables of the group; that page also includes
10797 instructions for disclosing a patent. An individual who has actual
10898 knowledge of a patent which the individual believes contains < a
109- href ="http://www.w3.org/ Consortium/Patent-Policy-20040205/#def-essential>
110- Essential Claim(s)</ a > must disclose the information in accordance with < a
111- href ="http://www.w3.org/ Consortium/Patent-Policy-20040205/#sec-Disclosure>
112- section 6 of the W3C Patent Policy</ a > .</ p >
99+ href ="/ Consortium/Patent-Policy-20040205/#def-essential> Essential
100+ Claim(s)</ a > must disclose the information in accordance with < a
101+ href ="/ Consortium/Patent-Policy-20040205/#sec-Disclosure> section 6 of the
102+ W3C Patent Policy</ a > .</ p >
113103 <!--end-status-->
114104
115105 < p > For this specification to exit the Candidate Recommendation stage, all
@@ -147,6 +137,9 @@ <h2 class="no-num no-toc" id=contents>Table of contents</h2>
147137
148138 < li > < a href ="#experimental "> < span class =secno > 3.3. </ span > Experimental
149139 Implementations</ a >
140+
141+ < li > < a href ="#testing "> < span class =secno > 3.4. </ span > Non-Experimental
142+ Implementations</ a >
150143 </ ul >
151144 </ ul >
152145 <!--end-toc-->
@@ -271,16 +264,16 @@ <h3 id=css2><span class=secno>2.2. </span>CSS Level 2</h3>
271264 instead of expanding an already < a
272265 href ="http://www.w3.org/Style/css2-updates/REC-CSS2-19980512-errata.html "> unwieldy
273266 errata list</ a > , the CSS Working Group chose to define < cite > CSS Level 2
274- Revision 1</ cite > (CSS2.1).
267+ Revision 1</ cite > (CSS2.1). In case of any conflict between the two specs
268+ CSS2.1 contains the definitive definition.
275269
276- < p > CSS2.1 is now a Candidate Recommendation—effectively though not
277- officially the same level of stability as CSS2—and should be
278- considered to obsolete the CSS2 Recommendation. In case of any conflict
279- between the two specs CSS2.1 contains the definitive definition. Features
280- in CSS2 that were dropped from CSS2.1 should be considered to be at the
281- Candidate Recommendation stage, but note that many of these have been or
282- will be pulled into a CSS Level 3 working draft, in which case that
283- specification will, once it reaches CR, obsolete the definitions in CSS2.
270+ < p > Once CSS2.1 became Candidate Recommendation—effectively though not
271+ officially the same level of stability as CSS2—obsoleted the CSS2
272+ Recommendation. Features in CSS2 that were dropped from CSS2.1 should be
273+ considered to be at the Candidate Recommendation stage, but note that many
274+ of these have been or will be pulled into a CSS Level 3 working draft, in
275+ which case that specification will, once it reaches CR, obsolete the
276+ definitions in CSS2.
284277
285278 < p > The < a href ="http://www.w3.org/TR/CSS21/ "> CSS2.1 specification</ a >
286279 defines < dfn id =css-level-2 > CSS Level 2</ dfn > and the < a
@@ -306,13 +299,7 @@ <h3 id=css3><span class=secno>2.3. </span>CSS Level 3</h3>
306299 < h2 id =css > < span class =secno > 3. </ span > Cascading Style Sheets Definition</ h2 >
307300
308301 < p > As of 2007, < dfn id =cascading-style-sheets-css > Cascading Style Sheets
309- (CSS)</ dfn > is defined by the following specifications. Each specification
310- in this list builds on and possibly modifies the definitions in the
311- previous specifications, with the base formed by < cite > CSS Level 2
312- Revision 1</ cite > . (In other words, CSS is defined as < cite > CSS Level 2
313- Revision 1</ cite > , modified by < cite > CSS Namespaces</ cite > , modified by
314- < cite > Selectors Level 3</ cite > , etc.) A valid CSS document is one that
315- conforms to this definition.
302+ (CSS)</ dfn > is defined by the following specifications.
316303
317304 < ol >
318305 < li > < a href ="http://www.w3.org/TR/CSS21/ "> CSS Level 2 Revision 1</ a >
@@ -331,8 +318,8 @@ <h2 id=css><span class=secno>3. </span>Cascading Style Sheets Definition</h2>
331318 < h3 id =partial > < span class =secno > 3.1. </ span > Partial Implementations</ h3 >
332319
333320 < p > So that authors can exploit the forward-compatible parsing rules to
334- assign fallback values, CSS layout implementations < strong > must</ strong >
335- treat as invalid (and < a
321+ assign fallback values, CSS renderers < strong > must</ strong > treat as
322+ invalid (and < a
336323 href ="http://www.w3.org/TR/CSS21/conform.html#ignore "> ignore as
337324 appropriate</ a > ) any at-rules, properties, property values, keywords, and
338325 other syntactic constructs for which they have no usable level of support.
@@ -371,3 +358,18 @@ <h3 id=experimental><span class=secno>3.3. </span>Experimental
371358 specification reaches the Candidate Recommendation stage, implementors
372359 should implement the non-prefixed syntax for any feature they consider to
373360 be correctly implemented according to spec.
361+
362+ < h3 id =testing > < span class =secno > 3.4. </ span > Non-Experimental
363+ Implementations</ h3 >
364+
365+ < p > To establish and maintain the interoperability of CSS across
366+ implementations, the CSS Working Group requests that non-experimental CSS
367+ renderers submit an implementation report (and, if necessary, the
368+ testcases used for that implementation report) to the W3C before releasing
369+ an unprefixed implementation of any CSS features. CSS2.1 implementations
370+ are encouraged, but not required, to submit such a report.
371+
372+ < p > Further information on CSS testing at W3C can be found from on the CSS
373+ Working Group's website at < a
374+ href ="http://www.w3.org/Style/CSS/Test/ "> http://www.w3.org/Style/CSS/Test/</ a > .
375+
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