-
Notifications
You must be signed in to change notification settings - Fork 3
/
Copy path2020-10-21.html
622 lines (483 loc) · 30.7 KB
/
2020-10-21.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
<!DOCTYPE html>
<html dir="ltr" lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<title>Prototype: Technique document| W3C WAI</title>
<link rel="stylesheet" href="https://w3.org/WAI/assets/css/style.css?1573220675560713000" />
<link rel="stylesheet" href="https://w3.org/WAI/atag/report-tool/build/bundle.css" />
<link rel="stylesheet" href="styles.css" />
<script type="text/javascript" async="" defer="" src="//www.w3.org/analytics/piwik/piwik.js"></script>
<script defer="" src="/WAI/atag/report-tool/build/bundle.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.20.0/prism.min.js"></script>
<link rel="stylesheet" href="/a11y-light.css" />
</head>
<body>
<header id="site-header" class="default-grid with-gap">
<div class="tool-header">
<span class="tool-header-name"><a href="2020-10-13-all-und.html">WCAG 2.1: Understanding</a></span>
<div class="tool-header-logo">
<a href="http://w3.org/">
<img alt="W3C" src="https://w3.org/WAI/atag/report-tool/images/w3c.svg" width="92" height="44" />
</a>
<a href="http://w3.org/WAI/">
<img alt="Web Accessibility Initiative" src="https://w3.org//WAI/atag/report-tool/images/wai.svg" />
</a>
</div>
</div>
</header>
<main>
<div id="conformance-tool" class="default-grid leftcol">
<!-- app 'renders' here -->
<div style="display: none;" aria-hidden="true" data-svnav-router="0"></div>
<nav class="nav svelte-3wzt7m" aria-label="Steps">
<ul class="svelte-3wzt7m">
<li class="nav__item">
<a href="2020-10-21.html" class="active">About Understanding documents</a>
</li>
<li class="nav__item">
<a href="2020-10-13-all-und.html">All Understanding documents</a>
</li>
<li class="nav__item">
<a href="alt-index.html">All WCAG 2 Guidance <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" height="24" width="24">
<path xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" clip-rule="evenodd" d="M14 5C13.4477 5 13 4.55228 13 4C13 3.44772 13.4477 3 14 3H20C20.2652 3 20.5196 3.10536 20.7071 3.29289C20.8946 3.48043 21 3.73478 21 4L21 10C21 10.5523 20.5523 11 20 11C19.4477 11 19 10.5523 19 10L19 6.41422L9.70711 15.7071C9.31658 16.0976 8.68342 16.0976 8.29289 15.7071C7.90237 15.3166 7.90237 14.6834 8.29289 14.2929L17.5858 5H14ZM3 7C3 5.89543 3.89543 5 5 5H10C10.5523 5 11 5.44772 11 6C11 6.55228 10.5523 7 10 7H5V19H17V14C17 13.4477 17.4477 13 18 13C18.5523 13 19 13.4477 19 14V19C19 20.1046 18.1046 21 17 21H5C3.89543 21 3 20.1046 3 19V7Z" fill="#282828"></path>
</svg></a>
<div id="explain-supporting-documents" hidden>
<p>WCAG comes with a number of supporting documents, including Techniques and Understanding documents.</p>
<p>See also: <a href="https://www.w3.org/WAI/standards-guidelines/wcag/#whatis2">What is in the WCAG 2 Documents</a></p>
</div>
</li>
</ul>
</nav>
<section class="app-content svelte-1ecbihu" aria-label="Main content">
<h1>About Understanding documents</h1>
<section class="informative introductory" id="intro">
<section class="doc-note-box">
<p><strong>Editor's note</strong> this is the <a href="https://www.w3.org/WAI/WCAG21/Understanding/#introduction">“introduction“ section</a> from the original TR-style document. It could benefit from copy editing</p>
</section>
<h2>Introduction</h2>
<p>Understanding WCAG 2.1 is a guide to understanding and using <a href="https://www.w3.org/TR/WCAG21/">Web Content Accessibility Guidelines 2.1</a> [[WCAG21]] Although the normative definition and requirements for WCAG 2.1 can all be
found in the WCAG 2.1 document itself, the concepts and provisions may be new to some people. Understanding WCAG 2.1 provides a non-normative extended commentary on each guideline and each Success Criterion to help readers better
understand the intent and how the guidelines and Success Criteria work together. It also provides examples of techniques or combinations of techniques that the Working Group has identified as being sufficient to meet each Success
Criterion. Links are then provided to write-ups for each of the techniques.
</p>
<section>
<h3>Relationship to Understanding WCAG 2.0</h3>
<p><a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/">Understanding WCAG 2.0</a> [[UNDERSTANDING-WCAG20]] is a substantial resource to support <a href="https://www.w3.org/TR/WCAG20/">Web Content Accessibility Guidelines 2.0</a> [[WCAG20]]. Understanding WCAG 2.1 is a parallel resource that supports the new success criteria in WCAG 2.1. At this stage, it only includes content related to new features of WCAG 2.0. Future versions <em>may</em> include
content relevant to WCAG 2.0, depending on how WCAG 2.1 evolves and what structure is determined to provide optimal support.
</p>
<p>Unlike Understanding WCAG 2.0, this document has not been published as a Technical Report. This change reduces the formality of the document and increases the ability of the Accessibility Guidelines Working Group to maintain the
content and optimize the structure. The Working Group considers the content to be authoritative. If feedback indicates the need, the document could be published as a Technical Report in the future.
</p>
</section>
<section>
<h3>Structure of Understanding WCAG 2.1</h3>
<p>This is not an introductory document. It is a detailed technical description of the guidelines and their Success Criteria. See <a href="https://www.w3.org/WAI/intro/wcag">Web Content Accessibility Guidelines (WCAG) Overview</a> for an introduction to WCAG, supporting technical documents, and educational material.
</p>
<p>Understanding WCAG 2.1 is organized by guideline. There is an <em>Understanding Guideline X.X</em> section for each guideline. The intent and any advisory techniques that are related to the guideline but not specifically related
to any of its Success Criteria are listed there as well.
</p>
<p>The <em>Understanding Guidelines X.X</em> section is then followed by a <em>Understanding Success Criterion X.X.X</em> section for each Success Criterion of that guideline. These sections each contain:
</p>
<ul>
<li>
<p>The Success Criterion as it appears in WCAG 2.1</p>
</li>
<li>
<p>Intent of the Success Criterion</p>
</li>
<li>
<p>Benefits (how the Success Criterion helps people with disabilities)</p>
</li>
<li>
<p>Examples</p>
</li>
<li>
<p> Related Resources </p>
</li>
<li>
<p>Techniques or combinations of techniques that are sufficient to meet the guidelines</p>
</li>
<li>
<p>Failures of this Success Criterion</p>
</li>
<li>
<p>Additional advisory techniques that go beyond what is required to meet the Success Criterion but can be used to make some or all types of content more accessible. Use of advisory techniques does not impact the level of
conformance claimed.
</p>
</li>
<li>
<p>Key terms for this Success Criterion (taken from the WCAG 2.1 Glossary)</p>
</li>
</ul>
<p>Links are provided from each Guideline in WCAG 2.1 directly to each <em>Understanding Guideline X.X</em> in this document. Similarly, there is a link from each Success Criterion in WCAG 2.1 to the <em>Understanding Success Criterion X.X.X</em> section in this document.
</p>
</section>
<section>
<h3>Techniques for WCAG 2.1</h3>
<p>Techniques specific to WCAG 2.1 are added to the the techniques for WCAG 2.0, it is one set. The <a href="../techniques/#changelog">Techniques change log</a> lists the new techniques added since WCAG 2.1 was published.
</p>
</section>
</section>
<section id="changelog">
<details>
<summary>
<h2>Change Log</h2>
</summary>
<h2>Understanding documents change Log</h2>
<p>A list of significantly updated Understanding documents since WCAG 2.1 was published:</p>
<ol>
<li>
<time datetime="2019-01-17">Jan 18th 2019</time>: Updated <a href="./non-text-contrast">Understanding Non-text contrast</a>, based on the changes from <a href="https://github.com/w3c/wcag/pull/550">Pull request 550</a>.
</li>
</ol>
<p>For a more detailed view of recent changes to the informative documents see the <a href="https://github.com/w3c/wcag/commits/master">github updates</a>.
</p>
</details>
</section>
<section id="ack_participants-active">
<details>
<summary>
<h2>Participants of the AG WG active in the development of this document:</h2>
</summary>
<ul>
<li>Jake Abma (Invited Expert)</li>
<li>Shadi Abou-Zahra (W3C)</li>
<li>Chuck Adams (Oracle Corporation)</li>
<li>Amani Ali (Nomensa)</li>
<li>Jim Allan (Invited Expert)</li>
<li>Paul Adam (Deque Systems, Inc.)</li>
<li>Christopher Auclair (VitalSource | Ingram Content Group)</li>
<li>Jon Avila (Level Access)</li>
<li>Tom Babinszki (IBM Corporation)</li>
<li>Bruce Bailey (U.S. Access Board)</li>
<li>Renaldo Bernard (University of Southampton)</li>
<li>Chris Blouch (Level Access)</li>
<li>Denis Boudreau (Deque Systems, Inc.)</li>
<li>Judy Brewer (W3C)</li>
<li>Shari Butler (Pearson plc)</li>
<li>Thaddeus Cambron (Invited Expert)</li>
<li>Alastair Campbell (Nomensa)</li>
<li>Laura Carlson (Invited Expert)</li>
<li>Louis Cheng (Google)</li>
<li>Pietro Cirrincione (Invited Expert)</li>
<li>Vivienne Conway (Web Key IT Pty Ltd)</li>
<li>Michael Cooper (W3C)</li>
<li>Jennifer Delisi (Invited Expert)</li>
<li>Romain Deltour (DAISY Consortium)</li>
<li>Wayne Dick (Knowbility, Inc)</li>
<li>Chaohai Ding (University of Southampton)</li>
<li>Kim Dirks (Thomson Reuters)</li>
<li>Shwetank Dixit (BarrierBreak Technologies)</li>
<li>Anthony Doran (TextHelp)</li>
<li>E.A. Draffan (University of Southampton)</li>
<li>Eric Eggert (W3C)</li>
<li>Michael Elledge (Invited Expert)</li>
<li>David Fazio (Invited Expert)</li>
<li>Wilco Fiers (Deque Systems, Inc.)</li>
<li>Detlev Fischer (Invited Expert)</li>
<li>John Foliot (Deque Systems, Inc.)</li>
<li>Matt Garrish (DAISY Consortium)</li>
<li>Alistair Garrison (Level Access)</li>
<li>Michael Gower (IBM Corporation)</li>
<li>Jon Gunderson</li>
<li>Markku Hakkinen (Educational Testing Service)</li>
<li>Katie Haritos-Shea (Knowbility, Inc)</li>
<li>Andy Heath (Invited Expert)</li>
<li>Shawn Henry (W3C)</li>
<li>Thomas Hoffman (Educational Testing Service)</li>
<li>Sarah Horton (The Paciello Group, LLC)</li>
<li>Stefan Johansson (Invited Expert)</li>
<li>Marc Johlic (IBM Corporation)</li>
<li>Rick Johnson (VitalSource | Ingram Content Group)</li>
<li>Crystal Jones (Microsoft Corporation)</li>
<li>Andrew Kirkpatrick (Adobe)</li>
<li>John Kirkwood (Invited Expert)</li>
<li>Jason Kiss (Department of Internal Affairs, New Zealand Government)</li>
<li>Maureen Kraft (IBM Corporation)</li>
<li>JaEun Ku (University of Illinois at Urbana-Champaign)</li>
<li>Patrick Lauke (The Paciello Group, LLC)</li>
<li>Shawn Lauriat (Google, Inc.)</li>
<li>Steve Lee (Invited Expert)</li>
<li>Alex Li (Microsoft Corporation)</li>
<li>Chris Loiselle (Invited Expert)</li>
<li>Greg Lowney (Invited Expert)</li>
<li>Adam Lund (Thomson Reuters)</li>
<li>David MacDonald (Invited Expert)</li>
<li>Erich Manser (IBM Corporation)</li>
<li>Kurt Mattes (Deque Systems, Inc.)</li>
<li>Scott McCormack (Level Access)</li>
<li>Chris McMeeking (Deque Systems, Inc.)</li>
<li>Jan McSorley (Pearson plc)</li>
<li>Neil Milliken (Unify Software and Solutions)</li>
<li>Rachael Montgomery (Invited Expert)</li>
<li>Mary Jo Mueller (IBM Corporation)</li>
<li>Brooks Newton (Thomson Reuters)</li>
<li>James Nurthen (Oracle Corporation)</li>
<li>Joshue O Connor (Invited Expert)</li>
<li>Sailesh Panchang (Deque Systems, Inc.)</li>
<li>Charu Pandhi (IBM Corporation)</li>
<li>Kim Patch (Invited Expert)</li>
<li>Melanie Philipp (Deque Systems, Inc.)</li>
<li>Mike Pluke (Invited Expert)</li>
<li>Ian Pouncey (The Paciello Group, LLC)</li>
<li>Ruoxi Ran (W3C)</li>
<li>Stephen Repsher (Invited Expert)</li>
<li>Jan Richards (Invited Expert)</li>
<li>John Rochford (Invited Expert)</li>
<li>Marla Runyan (Invited Expert)</li>
<li>Stefan Schnabel (SAP SE)</li>
<li>Ayelet Seeman (Invited Expert)</li>
<li>Lisa Seeman-Kestenbaum (Invited Expert)</li>
<li>Glenda Sims (Deque Systems, Inc.)</li>
<li>Avneesh Singh (DAISY Consortium)</li>
<li>David Sloan (The Paciello Group, LLC)</li>
<li>Alan Smith (Invited Expert)</li>
<li>Jim Smith (Unify Software and Solutions)</li>
<li>Andrew Somers (Invited Expert)</li>
<li>Adam Solomon (Invited Expert)</li>
<li>Jaeil Song (National Information Society Agency (NIA))</li>
<li>Jeanne Spellman (The Paciello Group, LLC)</li>
<li>Makoto Ueki (Invited Expert)</li>
<li>Jatin Vaishnav (Deque Systems, Inc.)</li>
<li>Gregg Vanderheiden (Raising the Floor)</li>
<li>Evangelos Vlachogiannis (Fraunhofer Gesellschaft)</li>
<li>Kathleen Wahlbin (Invited Expert)</li>
<li>Can Wang (Zhejiang University)</li>
<li>Léonie Watson (The Paciello Group, LLC)</li>
<li>Jason White (Educational Testing Service)</li>
<li>Mark Wilcock (Unify Software and Solutions)</li>
</ul>
</details>
</section>
<section id="ack_participants-previous">
<details>
<summary>
<h2>Other previously active WCAG WG participants and other contributors to WCAG 2.0, WCAG 2.1, or supporting resources </h2>
</summary>
<p>Paul Adam, Jenae Andershonis, Wilhelm Joys Andersen, Andrew Arch, Avi Arditti, Aries Arditi, Mark Barratt, Mike Barta, Sandy Bartell, Kynn Bartlett, Chris Beer, Charles Belov, Marco Bertoni, Harvey Bingham, Chris Blouch, Paul Bohman,
Frederick Boland, Denis Boudreau, Patrice Bourlon, Andy Brown, Dick Brown, Doyle Burnett, Raven Calais, Ben Caldwell, Tomas Caspers, Roberto Castaldo, Sofia Celic-Li, Sambhavi Chandrashekar, Mike Cherim, Jonathan Chetwynd,
Wendy Chisholm, Alan Chuter, David M Clark, Joe Clark, Darcy Clarke, James Coltham, Earl Cousins, James Craig, Tom Croucher, Pierce Crowell, Nir Dagan, Daniel Dardailler, Geoff Deering, Sébastien Delorme, Pete DeVasto, Iyad
Abu Doush, Sylvie Duchateau, Cherie Eckholm, Roberto Ellero, Don Evans, Gavin Evans, Neal Ewers, Steve Faulkner, Bengt Farre, Lainey Feingold, Wilco Fiers, Michel Fitos, Alan J. Flavell, Nikolaos Floratos, Kentarou Fukuda,
Miguel Garcia, P.J. Gardner, Alistair Garrison, Greg Gay, Becky Gibson, Al Gilman, Kerstin Goldsmith, Michael Grade, Karl Groves, Loretta Guarino Reid, Jon Gunderson, Emmanuelle Gutiérrez y Restrepo, Brian Hardy, Eric Hansen,
Benjamin Hawkes-Lewis, Sean Hayes, Shawn Henry, Hans Hillen, Donovan Hipke, Bjoern Hoehrmann, Allen Hoffman, Chris Hofstader, Yvette Hoitink, Martijn Houtepen, Carlos Iglesias, Richard Ishida, Jonas Jacek, Ian Jacobs, Phill
Jenkins, Barry Johnson, Duff Johnson, Jyotsna Kaki, Shilpi Kapoor, Leonard R. Kasday, Kazuhito Kidachi, Ken Kipness, Johannes Koch, Marja-Riitta Koivunen, Preety Kumar, Kristjan Kure, Andrew LaHart, Gez Lemon, Chuck Letourneau,
Aurélien Levy, Harry Loots, Scott Luebking, Tim Lacy, Jim Ley, Alex Li, William Loughborough, N Maffeo, Mark Magennis, Kapsi Maria, Luca Mascaro, Matt May, Sheena McCullagh, Liam McGee, Jens Oliver Meiert, Niqui Merret, Jonathan
Metz, Alessandro Miele, Steven Miller, Mathew J Mirabella, Matt May, Marti McCuller, Sorcha Moore, Charles F. Munat, Robert Neff, Charles Nevile, Liddy Nevile, Dylan Nicholson, Bruno von Niman, Tim Noonan, Sebastiano Nutarelli,
Graham Oliver, Sean B. Palmer, Devarshi Pant, Nigel Peck, Anne Pemberton, David Poehlman, Ian Pouncey, Charles Pritchard, Kerstin Probiesch, W Reagan, Adam Victor Reed, Chris Reeve, Chris Ridpath, Lee Roberts, Mark Rogers,
Raph de Rooij, Gregory J. Rosmaita, Matthew Ross, Sharron Rush, Joel Sanda, Janina Sajka, Roberto Scano, Gordon Schantz, Tim van Schie, Wolf Schmidt, Stefan Schnabel, Cynthia Shelly, Glenda Sims, John Slatin, Becky Smith, Jared
Smith, Andi Snow-Weaver, Neil Soiffer, Mike Squillace, Michael Stenitzer, Diane Stottlemyer, Christophe Strobbe, Sarah J Swierenga, Jim Thatcher, Terry Thompson, Justin Thorp, David Todd, Mary Utt, Jean Vanderdonckt, Carlos
A Velasco, Eric Velleman, Gijs Veyfeyken, Dena Wainwright, Paul Walsch, Daman Wandke, Richard Warren, Elle Waters, Takayuki Watanabe, Gian Wild, David Wooley, Wu Wei, Kenny Zhang, Leona Zumbo.</p>
</details>
</section>
<section>
<details>
<summary>
<h2>Enabling funders</h2>
</summary>
<p>This publication has been funded in part with U.S. Federal funds from the Health and Human Services, National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR), initially under contract number ED-OSE-10-C-0067
and now under contract number HHSP23301500054C. The content of this publication does not necessarily reflect the views or policies of the U.S. Department of Health and Human Services or the U.S. Department of Education, nor
does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.</p>
</details>
</section>
</section>
</section>
</section>
</div>
</main>
<div class="default-grid">
<aside class="box box-icon box-space-above" id="helpimprove" style="-ms-grid-column: 2; -ms-grid-column-span: 8; grid-column: 2 / 8;">
<header class="box-h box-h-icon box-h-space-above box-h-icon">
<svg focusable="false" aria-hidden="true" class="icon-comments">
<use
xlink:href="/WAI/atag/report-tool/images/icons.svg#icon-comments"
></use>
</svg>
<h2>Help improve this page</h2>
</header>
<div class="box-i">
<p>
Please share your ideas, suggestions, or comments via e-mail to the publicly-archived list
<a href="mailto:[email protected]@w3.org?subject=Techniques">[email protected]</a
>
or via GitHub.
</p>
<div class="button-group">
<a
href="mailto:[email protected]@w3.org?subject=Techniquesl&body=[put%20comment%20here...]"
class="button"
><span>E-mail</span></a
>
<a
href="https://github.com/w3c/wcag/issues/"
class="button"
><span>Fork & Edit on GitHub</span></a
><a
href="https://github.com/w3c/wcag/issues/new"
class="button"
><span>New GitHub Issue</span></a
>
</div>
</div>
<div></div>
</aside>
</div>
<footer
id="wai-site-footer"
class="page-footer default-grid"
aria-label="Page"
>
<div
class="inner"
style="-ms-grid-column: 2; -ms-grid-column-span: 8; grid-column: 2 / 8;"
>
<p><strong>Date:</strong> Published 29 June 2020.</p>
<p>
<strong>Authors</strong>:
<a href="https://www.w3.org/WAI/GL/">Accessibility Guidelines Working Group</a>.
<strong>Editors</strong>:
<a href="[email protected]">Alastair Campbell, Michael Cooper, Andrew Kirkpatrick</a>.
<strong>Contributors</strong>:
<a href="https://www.w3.org/People/Shawn/">Shawn Lawton Henry</a>, Eric Eggert, Kevin White, and Daniel Montalvo.
<a href="/WAI/atag/report-tool/acknowledgements">Acknowledgements</a> lists additional contributors.
</p>
<p>
Developed by the Education and Outreach Working Group (<a href="http://www.w3.org/WAI/EO/">EOWG</a
>) with support from the
<a href="https://www.w3.org/WAI/about/projects/wai-guide/"
>WAI-Guide</a
>
project funded by the European Commission (EC) under the Horizon 2020
program (Grant Agreement 822245).
</p>
</div>
</footer>
<footer class="site-footer grid-4q" aria-label="Site">
<div class="q1-start q3-end about">
<div>
<p>
<a
class="largelink"
href="https://w3.org/WAI/"
dir="auto"
translate="no"
lang="en"
>W3C Web Accessibility Initiative (WAI)</a
>
</p>
<p>
Strategies, standards, and supporting resources to make the Web
accessible to people with disabilities.
</p>
</div>
<div class="social" dir="auto" translate="no" lang="en">
<ul>
<li>
<a href="https://twitter.com/w3c_wai"
><svg focusable="false" aria-hidden="true" class="icon-twitter">
<use
xlink:href="/WAI/atag/report-tool/images/icons.svg#icon-twitter"
></use>
</svg>
Twitter</a
>
</li>
<li>
<a href="https://w3.org/WAI/feed.xml"
><svg focusable="false" aria-hidden="true" class="icon-rss">
<use
xlink:href="/WAI/atag/report-tool/images/icons.svg#icon-rss"
></use>
</svg>
Feed</a
>
</li>
<li>
<a
href="https://www.youtube.com/channel/UCU6ljj3m1fglIPjSjs2DpRA/playlistsv"
><svg focusable="false" aria-hidden="true" class="icon-youtube">
<use
xlink:href="/WAI/atag/report-tool/images/icons.svg#icon-youtube"
></use>
</svg>
YouTube</a
>
</li>
<li>
<a href="https://w3.org/WAI/news/subscribe/" class="button"
>Get News in Email</a
>
</li>
</ul>
</div>
<div dir="auto" translate="no" lang="en">
<p>
Copyright © 2019 W3C <sup>®</sup> (<a
href="https://www.csail.mit.edu/"
><abbr title="Massachusetts Institute of Technology">MIT</abbr></a
>,
<a href="https://www.ercim.eu/"
><abbr
title="European Research Consortium for Informatics and Mathematics"
>ERCIM</abbr
></a
>, <a href="https://www.keio.ac.jp/">Keio</a>,
<a href="https://ev.buaa.edu.cn">Beihang</a>)
<a href="https://w3.org/WAI/about/using-wai-material/">Permission to Use WAI Material</a
>.
</p>
</div>
</div>
<div dir="auto" translate="no" class="q4-start q4-end" lang="en">
<ul style="margin-bottom: 0;">
<li>
<a href="https://w3.org/WAI/about/contacting/">Contact WAI</a>
</li>
<li><a href="https://w3.org/WAI/sitemap/">Site Map</a></li>
<li><a href="https://w3.org/WAI/news/">News</a></li>
<li><a href="https://w3.org/WAI/sitemap/#archive">Archive</a></li>
<li>
<a href="https://w3.org/WAI/about/accessibility-statement/">Accessibility Statement</a
>
</li>
<li><a href="https://w3.org/WAI/translations/"> Translations</a></li>
<li><a href="https://w3.org/WAI/roles/">Resources for Roles</a></li>
</ul>
</div>
</footer>
<script src="https://unpkg.com/@popperjs/core@2/dist/umd/popper.min.js"></script>
<script src="https://unpkg.com/tippy.js@6/dist/tippy-bundle.umd.js"></script>
<script>
var tooltips = document.querySelectorAll('[data-tooltip-content]');
for (i = 0, length = tooltips.length; i < length; i++) {
var contentPointer = tooltips[i].getAttribute('data-tooltip-content');
var content = document.querySelector(contentPointer).innerHTML;
tippy(tooltips[i], {
content: content,
allowHTML: true,
interactive: true,
});
}
</script>
<style>
[data-tooltip-content] {
padding: 0;
background: none;
border: 0;
color: black;
font-size: inherit;
vertical-align: middle;
}
[data-tooltip-content]:hover {
background: none;
color: var(--light-blue);
}
[data-tippy-root] {
padding: 0 2em;
}
dt div {
font-weight: normal;
}
</style>
</body>
</html>