-
Notifications
You must be signed in to change notification settings - Fork 708
/
Copy pathOverview.html
2060 lines (1394 loc) · 54.8 KB
/
Overview.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head profile="http://dublincore.org/documents/2008/08/04/dc-html/ ">
<title>CSS TV Profile 1.0</title>
<link href="http://purl.org/dc/terms/" rel="schema.dcterms" />
<link href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright"
rel="dcterms.rights" />
<meta content="CSS TV Profile 1.0" name="dcterms.title" />
<meta content="text" name="dcterms.type" />
<meta content="2014-10-10" name="dcterms.date" />
<meta content="Sean Hayes" name="dcterms.creator" />
<meta content="Glenn Adams" name="dcterms.creator" />
<meta content="Tantek Çelik" name="dcterms.creator" />
<meta content="Håkon Wium Lie" name="dcterms.creator" />
<meta content="W3C" name="dcterms.publisher" />
<meta content="http://www.w3.org/TR/2014/NOTE-css-tv-20141010/"
name="dcterms.identifier" />
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<meta content="Sean Hayes" name="author" />
<meta content="Glenn Adams" name="author" />
<meta content="Tantek Çelik" lang="tr" name="author" />
<meta content="Håkon Wium Lie" lang="no" name="author" />
<meta content="CSS Cascading Style Sheets TV Television Profile"
name="keywords" />
<meta content="text/css" http-equiv="Content-Style-Type" />
<style type="text/css">
th { background: #005A9C; color: white; }
tr.yes { background: aqua; }
tr.no { background: transparent; }
.ins,.del { background: yellow; }
.del { text-decoration: line-through; }
img.head { width:72px; height:48px }
</style>
<link href="https://www.w3.org/StyleSheets/TR/W3C-WG-NOTE.css"
rel="stylesheet" type="text/css" /></head>
<body>
<div class="head"> <!--begin-logo-->
<p><a href="http://www.w3.org/"><img alt="W3C" height="48"
src="https://www.w3.org/Icons/w3c_home" width="72" /></a> <!--end-logo--></p>
<h1>CSS TV Profile 1.0</h1>
<h2 class="no-num no-toc">W3C Working Group Note 10 October 2014</h2>
<dl>
<dt>This version:</dt>
<dd><a href="http://www.w3.org/TR/2014/NOTE-css-tv-20141010/">
http://www.w3.org/TR/2014/NOTE-css-tv-20141010/</a></dd>
<dt>Latest version:</dt>
<dd><a href="http://www.w3.org/TR/css-tv">
http://www.w3.org/TR/css-tv</a></dd>
<dt>Previous version:</dt>
<dd><a href="http://www.w3.org/TR/2003/CR-css-tv-20030514">
http://www.w3.org/TR/2003/CR-css-tv-20030514</a></dd>
<dt>Authors:</dt>
<dd>Sean Hayes (<a href="http://www.microsoft.com/">Microsoft</a>) <<a
href="mailto:shayes@microsoft.com">shayes@microsoft.com</a>></dd>
<dd>Glenn Adams (<a href="http://www.cox.com">Cox Communications,
Inc.</a>) <<a href="mailto:glenn@skynav.com">glenn@skynav.com</a>></dd>
<dd><span lang="tr">Tantek Çelik</span> (<a
href="http://www.mozilla.org//">Mozilla Foundation</a>) <<a
href="mailto:tantek@cs.stanford.edu">tantek@cs.stanford.edu</a>></dd>
<dd><span lang="no">Håkon Wium Lie</span> (<a
href="http://www.opera.com/">Opera Software</a>) <<a
href="mailto:howcome@opera.com">howcome@opera.com</a>></dd>
</dl>
<!--begin-copyright-->
<p class="copyright"><a
href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright"
rel="license">Copyright</a> © 2014 <a href="http://www.w3.org/"><abbr
title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup> (<a
href="http://www.csail.mit.edu/"><abbr
title="Massachusetts Institute of Technology">MIT</abbr></a>, <a
href="http://www.ercim.eu/"><abbr
title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>,
<a href="http://www.keio.ac.jp/">Keio</a>, <a
href="http://ev.buaa.edu.cn/">Beihang</a>), All Rights Reserved. W3C <a
href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
<a
href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>
and <a
href="http://www.w3.org/Consortium/Legal/copyright-documents">document
use</a> rules apply.</p>
<!--end-copyright-->
<hr title="Separator for header" />
</div>
<h2 class="no-num no-toc">Abstract</h2>
<p>This specification defines a subset of Cascading Style Sheets Level 2
and CSS3 module: Color specifications tailored to the needs and
constraints of TV devices.</p>
<!-- **************************** -->
<!-- STATUS of DOCUMENT -->
<!-- **************************** -->
<h2 class="no-num no-toc" id="status">Status of this document</h2>
<!--begin-status-->
<p><em>This section describes the status of this document at the time of
its publication. Other documents may supersede this document. A list of
current W3C publications and the latest revision of this technical report
can be found in the <a href="http://www.w3.org/TR/">W3C technical reports
index at http://www.w3.org/TR/.</a></em></p>
<p>Publication as a Working Group Note does not imply endorsement by the
W3C Membership. This is a draft document and may be updated, replaced or
obsoleted by other documents at any time. It is inappropriate to cite this
document as other than work in progress.</p>
<p>This document was produced by the <a
href="http://www.w3.org/Style/CSS/members">CSS Working Group</a> (part of
the <a href="http://www.w3.org/Style/">Style Activity</a>).</p>
<p>The (<a
href="http://lists.w3.org/Archives/Public/www-style/">archived</a>) public
mailing list <a
href="mailto:www-style@w3.org?Subject=%5Bcss-tv%5D%20PUT%20SUBJECT%20HERE">www-style@w3.org</a>
(see <a href="http://www.w3.org/Mail/Request">instructions</a>) is
preferred for discussion of this document. When sending e-mail, please put
the text “css-tv” in the subject, preferably like this:
“[<!---->css-tv<!---->] <em>…summary of comment…</em>”</p>
<p>This document was produced by a group operating under the <a
href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February
2004 W3C Patent Policy</a>. W3C maintains a <a
href="http://www.w3.org/2004/01/pp-impl/32061/status"
rel="disclosure">public list of any patent disclosures</a> made in
connection with the deliverables of the group; that page also includes
instructions for disclosing a patent. An individual who has actual
knowledge of a patent which the individual believes contains <a
href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential
Claim(s)</a> must disclose the information in accordance with <a
href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section
6 of the W3C Patent Policy</a>.</p>
<p>This document is governed by the <a
href="http://www.w3.org/2014/Process-20140801/"
id="w3c_process_revision">1 August 2014 W3C Process Document</a>.</p>
<!--end-status-->
<p class="mtb"><em>At this time, the CSS Working Group does not envisage
further work on this specification and does not plan to propose it as a
W3C Recommendation.</em></p>
<!-- *************************** -->
<!-- TABLE OF CONTENTS -->
<!-- *************************** -->
<nav id="toc"
<h2 class="no-num no-toc" id="contents">Table of contents</h2>
<!--begin-toc-->
<ul class="toc">
<li><a href="#section-overview"><span class="secno">1. </span>Overview</a></li>
<li><a href="#section-conformance"><span class="secno">2.
</span>Conformance</a></li>
<li><a href="#section-selectors"><span class="secno">3. </span>Selectors
and at-rules</a>
<ul class="toc">
<li><a href="#selectors"><span class="secno">3.1. </span>Selectors</a></li>
<li><a href="#at-rules"><span class="secno">3.2. </span>at-rules</a></li>
</ul>
</li>
<li><a href="#section-properties"><span class="secno">4.
</span>Properties</a></li>
<li><a href="#section-syntax"><span class="secno">5. </span>CSS Syntax</a></li>
<li><a href="#section-assigning"><span class="secno">6. </span>Assigning
Property Values, Cascading, and Inheritance</a></li>
<li><a href="#section-mediatypes"><span class="secno">7. </span>Media
Types</a></li>
<li><a href="#section-ack"><span class="secno">8.
</span>Acknowledgements</a></li>
<li class="no-num"><a href="#section-references">Appendix A. Normative
References</a></li>
</ul>
<!--end-toc-->
</nav>
<!-- ****************** -->
<!-- OVERVIEW -->
<!-- ****************** -->
<h2 id="section-overview"><span class="secno">1. </span>Overview</h2>
<p>This document specifies a profile of the Cascading Style Sheets level 2
(CSS2) and CSS3 module: Color specifications appropriate for TV devices
such as set top boxes or integrated interactive television sets that
display their output on a television screen. Conformance to this profile
means that a user agent supports, at minimum, the features defined in this
specification. This subject is addressed in <a
href="#section-conformance">Section 2, Conformance,</a> below.</p>
<p>As defined in <a href="#ref-CSS2"
rel="biblioentry">[CSS2]<!--{{!CSS2}}--></a>:</p>
<blockquote>
<p>CSS2 is a style sheet language that allows authors and users to attach
style (e.g., fonts, spacing, and aural cues) to structured documents
(e.g., HTML documents and XML applications). By separating the
presentation style of documents from the content of documents, CSS2
simplifies Web authoring and site maintenance. CSS2 builds on CSS1 (see
<a href="#ref-CSS1" rel="biblioentry">[CSS1]<!--{{!CSS1}}--></a>) and,
with very few exceptions, all valid CSS1 style sheets are valid CSS2
style sheets. CSS2 supports media-specific style sheets so that authors
may tailor the presentation of their documents to visual browsers, aural
devices, printers, braille devices, handheld devices, etc.</p>
</blockquote>
<p>In summary, CSS2 specifies how developers can author style sheets for
presenting documents across multiple devices and media types. While this
is very important, it is also important that authors have an understanding
of what features are supported on these different devices. Likewise, it is
important that similar devices operate in a similar manner. Otherwise,
authors will need to develop style sheets for each version of each device
-- raising the cost of content development and decreasing
interoperability.</p>
<p>The CSS TV Profile specifies a conformance profile for TV devices,
identifying a minimum set of properties, values, selectors, and cascading
rules. The resulting CSS TV Profile includes the vast majority of CSS1,
portions of CSS2 and CSS3 module: Color. The CSS TV Profile is a proper
superset of the CSS Mobile Profile, with the use of the ‘<code
class="property">tv</code>’ media type instead of the ‘<code
class="property">handheld</code>’ media type.</p>
<!-- ******************** -->
<!-- CONFORMANCE -->
<!-- ******************** -->
<h2 id="section-conformance"><span class="secno">2. </span>Conformance</h2>
<p>The primary role of a profile is to define a subset of features that
provides a minimal guarantee of interoperability. In the case of the CSS
TV Profile, this guarantee is that a conforming user agent will support
the features defined in this specification following the CSS2 conformance
clause (<a href="#ref-CSS2" rel="biblioentry">[CSS2]<!--{{!CSS2}}--></a>
Section 3.2), recast and summarized below:</p>
<ol>
<li>A CSS TV Profile conforming user agent (TV-UA) MUST support the
<em>all</em> and <em>tv</em> CSS2 media types. A TV-UA MAY support other
CSS2 media types, as well.</li>
<li>For each source document, a TV-UA MUST attempt to retrieve all
associated style sheets that are appropriate for the supported media
types.</li>
<li>A TV-UA MUST parse the style sheets according to this specification.
In particular, the TV-UA MUST recognize all CSS TV Profile at-rules,
blocks, declarations, and selectors. If a TV-UA encounters a property
that applies for a supported media type, the TV-UA MUST parse the value
according to the property definition. This means that the TV-UA MUST
accept all valid values and MUST ignore declarations with invalid values.
TV-UA MUST ignore rules that apply to unsupported media types.</li>
<li>For each element in a document tree, the TV-UA MUST assign a value for
every applicable property according to the property's definition and the
rules of cascading and inheritance.</li>
<li>If the source document comes with alternate style sheets (such as with
the "alternate" keyword in HTML 4.0 [HTML40]), the TV-UA SHOULD allow the
user to select one from among these style sheets and apply the selected
one.</li>
</ol>
<p>As with CSS2, there are qualifications to this conformance clause:</p>
<ol>
<li>Values MAY be approximated when required by the TV-UA.</li>
<li>The inability of a TV-UA to implement part of this specification due
to the limitations of a particular device (e.g., a TV-UA cannot render
colors on a monochrome monitor or page) SHALL NOT imply non-conformance.</li>
</ol>
<p>It is recommended that authors use this conformance profile to take
advantage of forward compatibility. Authors should be able to use style
properties with an understanding that the cascading rules are processed
correctly and that unknown properties and values are ignored. For example:</p>
<div class="code-example">
<pre>
h3 {
display: inline;
display: run-in;
}
</pre>
</div>
<p>A TV-UA that can process the ‘<code class="property">run-in</code>’
value for the ‘<code class="property">display</code>’ property will
accept the first display declaration and then "write over" that value with
the second display declaration. A TV-UA that cannot process the ‘<code
class="property">run-in</code>’ value will process the first display
specification and ignore the second display specification.</p>
<!-- ******************* -->
<!-- SELECTORS -->
<!-- ******************* -->
<h2 id="section-selectors"><span class="secno">3. </span>Selectors and
at-rules</h2>
<h3 id="selectors"><span class="secno">3.1. </span>Selectors</h3>
<p> In CSS2, pattern matching rules determine which style rules apply to
elements in the document tree <a href="#ref-CSS2"
rel="biblioentry">[CSS2]<!--{{!CSS2}}--></a>.</p>
<p>The following table summarizes CSS TV Profile selector syntax. In
addition to these selectors, the CSS TV Profile includes the CSS2 grouping
mechanism (See <a href="#ref-CSS2"
rel="biblioentry">[CSS2]<!--{{!CSS2}}--></a> Section 5.2.1).</p>
<div class="note">
<p> <em><strong>Note.</strong> Unsupported selectors are parsed as invalid
(which would affect valid selectors in the same group), the same as if a
purely CSS1 UA were to encounter selectors new in CSS2. Of course a TV-UA
is free to implement more selectors than required by CSS TV. </em></p>
</div>
<table border="1" width="80%">
<tbody>
<tr>
<th>Pattern</th>
<th>Meaning</th>
<th>Selector type</th>
<th>CSS TV</th>
</tr>
<tr class="yes">
<td>*</td>
<td>Matches any element</td>
<td>Universal selector</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E</td>
<td>Matches any E element (i.e., and element of type E)</td>
<td>Type selectors</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E F</td>
<td>Matches any F element that is a descendent of an E element</td>
<td>Descendent selectors</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E > F</td>
<td>Matches any F element that is a child of an element E</td>
<td>Child selectors</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E:first-child</td>
<td>Matches element E when it is the first child of its parent</td>
<td>The :first-child pseudo-class</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E:link<br />
E:visited</td>
<td>Matches element E if E is the source anchor of a hyperlink of which
the target is not yet visited (:link) or already visited (:visited).</td>
<td>The link pseudo-classes</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E:active</td>
<td>Matches E during certain user actions.</td>
<td>The dynamic pseudo-classes</td>
<td>Yes</td>
</tr>
<tr class="no">
<td>E:hover</td>
<td>Matches E during certain user actions.</td>
<td>The dynamic pseudo-classes</td>
<td>No</td>
</tr>
<tr class="yes">
<td>E:focus</td>
<td>Matches E during certain user actions.</td>
<td>The dynamic pseudo-classes</td>
<td>Yes</td>
</tr>
<tr class="no">
<td>E:lang(c)</td>
<td>Matches element of type E if it is in (human) language c (the
document language specifies how language is determined).</td>
<td>The :lang() pseudo-class</td>
<td>No</td>
</tr>
<tr class="no">
<td>E + F</td>
<td>Matches any F element immediately preceded by an element E.</td>
<td>Adjacent selectors</td>
<td>No</td>
</tr>
<tr class="no">
<td>E[foo]</td>
<td>Matches any E element with the "foo" attribute set (whatever the
value).</td>
<td>Attribute selectors</td>
<td>No</td>
</tr>
<tr class="no">
<td>E[foo="bar"]</td>
<td>Matches any E element whose "foo" attribute value is exactly equal
to "bar".</td>
<td>Attribute selectors</td>
<td>No</td>
</tr>
<tr class="no">
<td>E[foo~="bar"]</td>
<td>Matches any E element whose "foo" attribute value is a list of
space-separated values, one of which is exactly equal to "bar".</td>
<td>Attribute selectors</td>
<td>No</td>
</tr>
<tr class="no">
<td>E[foo|="bar"]</td>
<td>Matches any E element whose "foo" attribute value has a
hyphen-separated list of values beginning (from the left) with "bar".</td>
<td>Attribute selectors</td>
<td>No</td>
</tr>
<tr class="yes">
<td>E:first-line</td>
<td>Matches the first formatted line of an E element.</td>
<td>The :first-line pseudo-element</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E:first-letter</td>
<td>Matches the first formatted letter of an E element.</td>
<td>The :first-letter pseudo-element</td>
<td>Yes</td>
</tr>
<tr class="no">
<td>E:before</td>
<td>Matches/creates generated content before an E element.</td>
<td>The :before pseudo-element</td>
<td>No</td>
</tr>
<tr class="no">
<td>E:after</td>
<td>Matches/creates generated content after an E element.</td>
<td>The :after pseudo-element</td>
<td>No</td>
</tr>
<tr class="yes">
<td>E.bar</td>
<td>Matches any E element whose class attribute (as defined by the
document language) value is a list of space-separated values, one of
which is exactly equal to "bar".</td>
<td>Class selectors</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>E#bar</td>
<td>Matches any E element whose ID attribute (as defined by the document
language) is equal to "bar".</td>
<td>ID selectors</td>
<td>Yes</td>
</tr>
</tbody>
</table>
<h3 id="at-rules"><span class="secno">3.2. </span>at-rules</h3>
<p>The following table summarizes CSS TV Profile at-rule syntax.</p>
<table border="1" width="80%">
<tbody>
<tr>
<th>at-rule</th>
<th>Function</th>
<th>CSS TV</th>
</tr>
<tr class="yes">
<td>@import</td>
<td>Imports an external style sheet.</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>@charset</td>
<td>Defines character set for the style sheet.</td>
<td>Yes</td>
</tr>
<tr class="yes">
<td>@media</td>
<td>Groups a set of style rules to apply only to one or more particular
media.</td>
<td>Yes</td>
</tr>
<tr class="no">
<td>@font-face</td>
<td>Defines a named font-family, including for downloading.</td>
<td>No</td>
</tr>
<tr class="no">
<td>@page</td>
<td>Defines a (optionally named) page formatting context.</td>
<td>No</td>
</tr>
<tr class="no">
<td>@color-profile</td>
<td>Defines a named color-profile.</td>
<td>No</td>
</tr>
</tbody>
</table>
<!-- ******************************* -->
<!-- PROPERTIES AND VALUES -->
<!-- ******************************* -->
<h2 id="section-properties"><span class="secno">4. </span>Properties</h2>
<p>The following table summarizes CSS TV Profile properties and property
values from CSS2. Refer to <a href="#ref-CSS2"
rel="biblioentry">[CSS2]<!--{{!CSS2}}--></a> for the definition of these
properties and values.</p>
<table border="1" width="80%">
<thead>
<tr align="center">
<th>Name</th>
<th>CSS TV</th>
<th>CSS Values</th>
<th>Initial value</th>
</tr>
</thead>
<tbody>
<tr class="no">
<td>‘<code class="property">azimuth</code>’</td>
<td>No</td>
<td><angle> | [ left-side | far-left | left | center-left | center
| center-right | right | far-right | right-side ] || behind ] |
leftwards | rightwards | inherit</td>
<td>center</td>
</tr>
<tr class="yes">
<td>‘<code class="property">background</code>’</td>
<td>[‘<code class="property">background-color</code>’ || ‘<code
class="property">background-image</code>’ || ‘<code
class="property">background-repeat</code>’ || ‘<code
class="property">background-position</code>’] | inherit</td>
<td>[‘<code class="property">background-color</code>’ || ‘<code
class="property">background-image</code>’ || ‘<code
class="property">background-repeat</code>’ || ‘<code
class="property">background-attachment</code>’ || ‘<code
class="property">background-position</code>’] | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="no">
<td>‘<code class="property">background-attachment</code>’</td>
<td>No</td>
<td>scroll | fixed | inherit</td>
<td>scroll</td>
</tr>
<tr class="yes">
<td>‘<code class="property">background-color</code>’</td>
<td>Yes</td>
<td><color> | transparent | inherit</td>
<td>transparent</td>
</tr>
<tr class="yes">
<td>‘<code class="property">background-image</code>’</td>
<td>Yes</td>
<td><uri> | none | inherit</td>
<td>none</td>
</tr>
<tr class="yes">
<td>‘<code class="property">background-position</code>’</td>
<td>Yes</td>
<td>[ [ <percentage> | <length> ]{1,2} | [ [top | center |
bottom] || [left | center | right] ] ] | inherit</td>
<td>0% 0%</td>
</tr>
<tr class="yes">
<td>‘<code class="property">background-repeat</code>’</td>
<td>Yes</td>
<td>repeat | repeat-x | repeat-y | no-repeat | inherit</td>
<td>repeat</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border</code>’</td>
<td>Yes</td>
<td>[ <border-width> || <border-style> ||
<border-color> ] | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="no">
<td>‘<code class="property">border-collapse</code>’</td>
<td>No</td>
<td>collapse | separate | inherit</td>
<td>separate</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-color</code>’</td>
<td>Yes</td>
<td><color>{1,4} | transparent | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="no">
<td>‘<code class="property">border-spacing</code>’</td>
<td>No</td>
<td><length> <length>? | inherit</td>
<td>0</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-style</code>’</td>
<td>Yes</td>
<td><border-style>{1,4} | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-top</code>’ ‘<code
class="property">border-right</code>’ ‘<code
class="property">border-bottom</code>’ ‘<code
class="property">border-left</code>’</td>
<td>Yes</td>
<td>[ <border-width> || <border-style> ||
<border-color> ] | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-top-color</code>’ ‘<code
class="property">border-right-color</code>’ ‘<code
class="property">border-bottom-color</code>’ ‘<code
class="property">border-left-color</code>’</td>
<td>Yes</td>
<td><color> | transparent | inherit</td>
<td>the value of the ‘<code class="property">color</code>’ property</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-top-style</code>’ ‘<code
class="property">border-right-style</code>’ ‘<code
class="property">border-bottom-style</code>’ ‘<code
class="property">border-left-style</code>’</td>
<td>Yes</td>
<td><border-style> | inherit</td>
<td>none</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-top-width</code>’ ‘<code
class="property">border-right-width</code>’ ‘<code
class="property">border-bottom-width</code>’ ‘<code
class="property">border-left-width</code>’</td>
<td>Yes</td>
<td><border-width> | inherit</td>
<td>medium</td>
</tr>
<tr class="yes">
<td>‘<code class="property">border-width</code>’</td>
<td>Yes</td>
<td><border-width>{1,4} | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="yes">
<td>‘<code class="property">bottom</code>’</td>
<td>Yes</td>
<td><length> | <percentage> | auto | inherit</td>
<td>auto</td>
</tr>
<tr class="yes">
<td>‘<code class="property">caption-side</code>’</td>
<td>Yes</td>
<td>top | bottom | left | right | inherit</td>
<td>top</td>
</tr>
<tr class="yes">
<td>‘<code class="property">clear</code>’</td>
<td>Yes</td>
<td>none | left | right | both | inherit</td>
<td>none</td>
</tr>
<tr class="yes">
<td>‘<code class="property">clip</code>’</td>
<td>Yes</td>
<td><shape> | auto | inherit</td>
<td>auto</td>
</tr>
<tr class="yes">
<td>‘<code class="property">color</code>’</td>
<td>Yes</td>
<td><color> | inherit</td>
<td>depends on user agent</td>
</tr>
<tr class="no">
<td>‘<code class="property">content</code>’</td>
<td>No</td>
<td>[ <string> | <uri> | <counter> | attr(X) |
open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit</td>
<td>empty string</td>
</tr>
<tr class="no">
<td>‘<code class="property">counter-increment</code>’</td>
<td>No</td>
<td>[ <identifier> <integer>? ]+ | none | inherit</td>
<td>none</td>
</tr>
<tr class="no">
<td>‘<code class="property">counter-reset</code>’</td>
<td>No</td>
<td>[ <identifier> <integer>? ]+ | none | inherit</td>
<td>none</td>
</tr>
<tr class="no">
<td>‘<code class="property">cue</code>’</td>
<td>No</td>
<td>[ ‘<code class="property">cue-before</code>’ || ‘<code
class="property">cue-after</code>’ ] | inherit</td>
<td>see individual properties</td>
</tr>
<tr class="no">
<td>‘<code class="property">cue-after</code>’</td>
<td>No</td>
<td><uri> | none | inherit</td>
<td>none</td>
</tr>
<tr class="no">
<td>‘<code class="property">cue-before</code>’</td>
<td>No</td>
<td><uri> | none | inherit</td>
<td>none</td>
</tr>
<tr class="no">
<td>‘<code class="property">cursor</code>’</td>
<td>No</td>
<td>[ [<uri> ,]* [ auto | crosshair | default | pointer | move |
e-resize | ne-resize | nw-resize | n-resize | se-resize | sw-resize |
s-resize | w-resize| text | wait | help ] ] | inherit</td>
<td>auto</td>
</tr>
<tr class="no">
<td>‘<code class="property">direction</code>’</td>
<td>No</td>
<td>ltr | rtl | inherit</td>
<td>ltr</td>
</tr>
<tr class="yes">
<td>‘<code class="property">display</code>’</td>
<td>inline | block | list-item | none | inherit</td>
<td>inline | block | list-item | run-in | compact | marker | table |
inline-table | table-row-group | table-header-group |
table-footer-group | table-row | table-column-group | table-column |