From 2c1fa209abbf49b2ebcae2fd31e9254adb93b396 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20B=C3=A9tin?= 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. Web Content Accessibility Guidelines (WCAG) 2.1 defines how to make Web content more accessible to people with disabilities. Accessibility involves a wide range of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities. Although these guidelines cover a wide range of issues, they are not able to address the needs of people with all types, degrees, and combinations of disability. These guidelines also make Web content more usable by older individuals with changing abilities due to aging and often improve usability for users in general. WCAG 2.1 is developed through the W3C process in cooperation with individuals and organizations around the world, with a goal of providing a shared standard for Web content accessibility that meets the needs of individuals, organizations, and governments internationally. WCAG 2.1 builds on WCAG 2.0 [[WCAG20]], which in turn built on WCAG 1.0 [[WAI-WEBCONTENT]] and is designed to apply broadly to different Web technologies now and in the future, and to be testable with a combination of automated testing and human evaluation. For an introduction to WCAG, see the Web Content Accessibility Guidelines (WCAG) Overview. Where this document refers to The individuals and organizations that use WCAG vary widely and include Web designers and developers, policy makers, purchasing agents, teachers, and students. In order to meet the varying needs of this audience, several layers of guidance are provided including overall principles, general guidelines, testable success criteria and a rich collection of sufficient techniques, advisory techniques, and documented common failures with examples, resource links and code. All of these layers of guidance (principles, guidelines, success criteria, and sufficient and advisory techniques) work together to provide guidance on how to make content more accessible. Authors are encouraged to view and apply all layers that they are able to, including the advisory techniques, in order to best address the needs of the widest possible range of users. Note that even content that conforms at the highest level (AAA) will not be accessible to individuals with all types, degrees, or combinations of disability, particularly in the cognitive language and learning areas. Authors are encouraged to consider the full range of techniques, including the advisory techniques, as well as to seek relevant advice about current best practice to ensure that Web content is accessible, as far as possible, to this community. Metadata may assist users in finding content most suitable for their needs. The WCAG 2.1 document is designed to meet the needs of those who need a stable, referenceable technical standard. Other documents, called supporting documents, are based on the WCAG 2.1 document and address other important purposes, including the ability to be updated to describe how WCAG would be applied with new technologies. Supporting documents include: See Web Content Accessibility Guidelines (WCAG) Overview for a description of the WCAG 2.1 supporting material, including education resources related to WCAG 2. Additional resources covering topics such as the business case for Web accessibility, planning implementation to improve the accessibility of Web sites, and accessibility policies are listed in WAI Resources. WCAG 2.1 meets a set of requirements for WCAG 2.1 which, in turn, inherit requirements from WCAG 2.0. Requirements structure the overall framework of guidelines and ensure backwards compatibility. The Working Group also used a less formal set of acceptance criteria for success criteria, to help ensure success criteria are similar in style and quality to those in WCAG 2.0. These requirements constrained what could be included in WCAG 2.1. This constraint was important to preserve its nature as a dot-release of WCAG 2. WCAG 2.1 was initiated with the goal to improve accessibility guidance for three major groups: users with cognitive or learning disabilities, users with low vision, and users with disabilities on mobile devices. Many ways to meet these needs were proposed and evaluated, and a set of these were refined by the Working Group. Structural requirements inherited from WCAG 2.0, clarity and impact of proposals, and timeline led to the final set of success criteria included in this version. The Working Group considers that WCAG 2.1 incrementally advances web content accessibility guidance for all these areas, but underscores that not all user needs are met by these guidelines. WCAG 2.1 builds on and is backwards compatible with WCAG 2.0, meaning web pages that conform to WCAG 2.1 also conform to WCAG 2.0. Authors that are required by policy to conform with WCAG 2.0 will be able to update content to WCAG 2.1 without losing conformance with WCAG 2.0. Authors following both sets of guidelines should be aware of the following differences: WCAG 2.1 extends WCAG 2.0 by adding new success criteria, definitions to support them, guidelines to organize the additions, and a couple additions to the conformance section. This additive approach helps to make it clear that sites which conform to WCAG 2.1 also conform to WCAG 2.0, thereby meeting conformance obligations that are specific to WCAG 2.0. The Accessibility Guidelines Working Group recommends that sites adopt WCAG 2.1 as their new conformance target, even if formal obligations mention WCAG 2.0, to provide improved accessibility and to anticipate future policy changes. The following Success Criteria are new in WCAG 2.1: The new success criteria may reference new terms that have also been added to the glossary and form part of the normative requirements of the success criteria. In the Conformance section, a third note about page variants has been added to Full Pages, and an option for machine-readable metadata added to Optional Components of a Conformance Claim. In order to avoid confusion for implementers for whom backwards compatibility to WCAG 2.0 is important, new success criteria in WCAG 2.1 have been appended to the end of the set of success criteria within their guideline. This avoids the need to change the section number of success criteria from WCAG 2.0, which would be caused by inserting new success criteria between existing success criteria in the guideline, but it means success criteria in each guideline are no longer grouped by conformance level. The order of success criteria within each guideline does not imply information about conformance level; only the conformance level indicator (A / AA / AAA) on the success criterion itself indicates this. The WCAG 2.1 Quick Reference provides ways to view success criteria grouped by conformance level, along with many other filter and sort options. WCAG 2.1 uses the same conformance model as WCAG 2.0 with a couple additions, which is described in the Conformance section. It is intended that sites that conform to WCAG 2.1 also conform to WCAG 2.0, which means they meet the requirements of any policies that reference WCAG 2.0, while also better meeting the needs of users on the current Web. In parallel with WCAG 2.1, the Accessibility Guidelines Working Group is developing another major version of accessibility guidelines. The result of this work is expected to be a more substantial restructuring of web accessibility guidance than would be realistic for dot-releases of WCAG 2. The work follows a research-focused, user-centered design methodology to produce the most effective and flexible outcome, including the roles of content authoring, user agent support, and authoring tool support. This is a multi-year effort, so WCAG 2.1 is needed as an interim measure to provide updated web accessibility guidance to reflect changes on the web since the publication of WCAG 2.0. The Working Group might also develop additional interim versions, continuing with WCAG 2.2, on a similar short timeline to provide additional support while the major version is completed. Information and user interface components must be presentable to users in ways they can perceive. Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language. Provide alternatives for time-based media. Create content that can be presented in different ways (for example simpler layout) without losing information or structure. Make it easier for users to see and hear content including separating foreground from background. User interface components and navigation must be operable. Make all functionality available from a keyboard. Provide users enough time to read and use content. Do not design content in a way that is known to cause seizures or physical reactions. New Make it easier for users to operate functionality through various inputs beyond keyboard. Information and the operation of the user interface must be understandable. Make text content readable and understandable. Make Web pages appear and operate in predictable ways. Help users avoid and correct mistakes. Content must be robust enough that it can be interpreted by a wide variety of user agents, including assistive technologies. Maximize compatibility with current and future user agents, including assistive technologies. This section lists requirements for conformance to WCAG 2.1. It also gives information about how to make conformance claims, which are optional. Finally, it describes what it means to be accessibility supported, since only accessibility-supported ways of using technologies can be relied upon for conformance. Understanding Conformance includes further explanation of the accessibility-supported concept. The main content of WCAG 2.1 is normative and defines requirements that impact conformance claims. Introductory material, appendices, sections marked as "non-normative", diagrams, examples, and notes are informative (non-normative). Non-normative material provides advisory information to help interpret the guidelines but does not create requirements that impact a conformance claim. A mechanism for identifying the expanded form or meaning of abbreviations is available.
Enabling funders
+Enabling funders
Introduction
- Background on WCAG 2
Background on WCAG 2
WCAG 2
it is intended to mean any and all versions of WCAG that start with 2.WCAG 2 Layers of Guidance
@@ -58,8 +58,8 @@
WCAG 2 Layers of Guidance
WCAG 2.1 Supporting Documents
+ WCAG 2.1 Supporting Documents
WCAG 2.1 Supporting Documents
Requirements for WCAG 2.1
+ Requirements for WCAG 2.1
Comparison with WCAG 2.0
+ Comparison with WCAG 2.0
New Features in WCAG 2.1
+ New Features in WCAG 2.1
@@ -112,17 +112,17 @@
New Features in WCAG 2.1
Numbering in WCAG 2.1
+ Numbering in WCAG 2.1
Conformance to WCAG 2.1
+ Conformance to WCAG 2.1
Later Versions of Accessibility Guidelines
+ Later Versions of Accessibility Guidelines
Later Versions of Accessibility Guidelines
Perceivable
Text Alternatives
Time-based Media
Time-based Media
Adaptable
Adaptable
Distinguishable
Distinguishable
Operable
Keyboard Accessible
Keyboard Accessible
Enough Time
Enough Time
Seizures and Physical Reactions
Seizures and Physical Reactions
Input Modalities
Input Modalities
Understandable
Readable
Readable
Predictable
Predictable
Input Assistance
Input Assistance
Robust
Compatible
Conformance
Interpreting Normative Requirements
Abbreviations
@@ -7,4 +7,4 @@ Abbreviations
Audio Control
@@ -13,4 +13,4 @@ Audio Control
to meet other success criteria) must meet this success criterion. See Conformance Requirement 5: Non-Interference.
A mechanism is available to bypass blocks of content that are repeated on multiple Web pages.
-Changes of context are initiated only by user request or a mechanism is available to turn off such changes.
-AA
@@ -7,4 +7,4 @@Components that have the same functionality within a set of Web pages are identified consistently.
-Headings and labels describe topic or purpose.
-Context-sensitive help is available.
-Logotypes (text that is part of a logo or brand name) are considered essential.
-Logotypes (text that is part of a logo or brand name) are considered essential.
-Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.
-All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes.
-Labels or instructions are provided when content requires user input.
-The default human language of each Web page can be programmatically determined.
-Information about the user's location within a set of Web pages is available.
-When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.
-More than one way is available to locate a Web page within a set of Web pages except where the Web Page is the result of, or a step in, a process.
-When any user interface component receives focus, it does not initiate a change of context.
-Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component.
-Web pages have titles that describe topic or purpose.
-A
In content implemented using markup languages, elements have complete start and end @@ -20,4 +20,4 @@
Issues such as missing roles due to inappropriately nested elements or incorrect states or names due to a duplicate ID are covered by different Success Criteria and should be reported under those criteria rather than as issues with 4.1.1.
-Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.
-Web pages do not contain anything that flashes more than three times in any one second period.
-A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way, including idioms and jargon.
-AAA
@@ -13,5 +13,5 @@AAA
Web content does not restrict use of input modalities available on a platform except where the restriction is essential, required to ensure the security of the content, or required to respect user settings.
diff --git a/guidelines/sc/21/content-on-hover-or-focus.html b/guidelines/sc/21/content-on-hover-or-focus.html index 1bbad2beee..2d15f34d09 100644 --- a/guidelines/sc/21/content-on-hover-or-focus.html +++ b/guidelines/sc/21/content-on-hover-or-focus.html @@ -1,5 +1,5 @@ -AA
diff --git a/guidelines/sc/21/identify-input-purpose.html b/guidelines/sc/21/identify-input-purpose.html index 48f11559ac..7eb56ad302 100644 --- a/guidelines/sc/21/identify-input-purpose.html +++ b/guidelines/sc/21/identify-input-purpose.html @@ -1,4 +1,4 @@ -A
diff --git a/guidelines/sc/21/motion-actuation.html b/guidelines/sc/21/motion-actuation.html index b05e7afe54..dd80e956f7 100644 --- a/guidelines/sc/21/motion-actuation.html +++ b/guidelines/sc/21/motion-actuation.html @@ -1,4 +1,4 @@ -Exception: Human languages and scripts that do not make use of one or more of these text style properties in written text can conform using only the properties that exist for that combination of language and script.
- +shortened form of a word, phrase, or name where the abbreviation has not become part diff --git a/guidelines/terms/20/accessibility-supported.html b/guidelines/terms/20/accessibility-supported.html index 5711268545..e863db98c9 100644 --- a/guidelines/terms/20/accessibility-supported.html +++ b/guidelines/terms/20/accessibility-supported.html @@ -1,4 +1,4 @@ -
supported by users' assistive technologies as well as the accessibility features in browsers and other user agents
diff --git a/guidelines/terms/20/alternative-for-time-based-media.html b/guidelines/terms/20/alternative-for-time-based-media.html index 5e071239db..22bf2a0053 100644 --- a/guidelines/terms/20/alternative-for-time-based-media.html +++ b/guidelines/terms/20/alternative-for-time-based-media.html @@ -1,4 +1,4 @@ -document including correctly sequenced text descriptions of time-based visual and diff --git a/guidelines/terms/20/ambiguous-to-users-in-general.html b/guidelines/terms/20/ambiguous-to-users-in-general.html index 26d94e44cf..5260803b07 100644 --- a/guidelines/terms/20/ambiguous-to-users-in-general.html +++ b/guidelines/terms/20/ambiguous-to-users-in-general.html @@ -1,4 +1,4 @@ -
the purpose cannot be determined from the link and all information of the Web page diff --git a/guidelines/terms/20/ascii-art.html b/guidelines/terms/20/ascii-art.html index e9e6176959..4441416ef5 100644 --- a/guidelines/terms/20/ascii-art.html +++ b/guidelines/terms/20/ascii-art.html @@ -1,4 +1,4 @@ -
picture created by a spatial arrangement of characters or glyphs (typically from the diff --git a/guidelines/terms/20/assistive-technology.html b/guidelines/terms/20/assistive-technology.html index 0e9df1d118..7309001713 100644 --- a/guidelines/terms/20/assistive-technology.html +++ b/guidelines/terms/20/assistive-technology.html @@ -1,4 +1,4 @@ -
narration added to the soundtrack to describe important visual details that cannot diff --git a/guidelines/terms/20/audio-only.html b/guidelines/terms/20/audio-only.html index fe88b4570c..7e467df2b6 100644 --- a/guidelines/terms/20/audio-only.html +++ b/guidelines/terms/20/audio-only.html @@ -1,7 +1,7 @@ -
a time-based presentation that contains only audio (no video and no interaction)
-the technology of sound reproduction
diff --git a/guidelines/terms/20/blinking.html b/guidelines/terms/20/blinking.html index da6b8073bd..fc9099697f 100644 --- a/guidelines/terms/20/blinking.html +++ b/guidelines/terms/20/blinking.html @@ -1,4 +1,4 @@ -switch back and forth between two visual states in a way that is meant to draw attention
diff --git a/guidelines/terms/20/blocks-of-text.html b/guidelines/terms/20/blocks-of-text.html index 82358e05ed..1b85e3dc14 100644 --- a/guidelines/terms/20/blocks-of-text.html +++ b/guidelines/terms/20/blocks-of-text.html @@ -1,6 +1,6 @@ -more than one sentence of text
-initialism for "Completely Automated Public Turing test to tell Computers and Humans diff --git a/guidelines/terms/20/captions.html b/guidelines/terms/20/captions.html index 226b7b509d..2192362d54 100644 --- a/guidelines/terms/20/captions.html +++ b/guidelines/terms/20/captions.html @@ -1,4 +1,4 @@ -
synchronized visual and/or text alternative for both speech and non-speech audio information needed to understand the media content diff --git a/guidelines/terms/20/changes-of-context.html b/guidelines/terms/20/changes-of-context.html index 9992de5ac6..b57e76b901 100644 --- a/guidelines/terms/20/changes-of-context.html +++ b/guidelines/terms/20/changes-of-context.html @@ -1,4 +1,4 @@ -
major changes that, if made without user awareness, can disorient users who are not able to view diff --git a/guidelines/terms/20/conformance.html b/guidelines/terms/20/conformance.html index 0949c06528..3de38f41e1 100644 --- a/guidelines/terms/20/conformance.html +++ b/guidelines/terms/20/conformance.html @@ -1,6 +1,6 @@ -
satisfying all the requirements of a given standard, guideline or specification
-version that
diff --git a/guidelines/terms/20/content.html b/guidelines/terms/20/content.html index 237dbf564e..cce2c2c612 100644 --- a/guidelines/terms/20/content.html +++ b/guidelines/terms/20/content.html @@ -1,8 +1,8 @@ -information and sensory experience to be communicated to the user by means of a user agent, including code or markup that defines the content's structure, presentation, and interactions
-help text that provides information related to the function currently being performed
diff --git a/guidelines/terms/20/contrast-ratio.html b/guidelines/terms/20/contrast-ratio.html index eee5a807ce..66a1d522e9 100644 --- a/guidelines/terms/20/contrast-ratio.html +++ b/guidelines/terms/20/contrast-ratio.html @@ -1,4 +1,4 @@ -(L1 + 0.05) / (L2 + 0.05), where
diff --git a/guidelines/terms/20/correct-reading-sequence.html b/guidelines/terms/20/correct-reading-sequence.html index 979721b022..69799e4d81 100644 --- a/guidelines/terms/20/correct-reading-sequence.html +++ b/guidelines/terms/20/correct-reading-sequence.html @@ -1,8 +1,8 @@ -any sequence where words and paragraphs are presented in an order that does not change the meaning of the content
-a sudden, unexpected situation or occurrence that requires immediate action to preserve health, safety, or property
-if removed, would fundamentally change the information or functionality of the content, and information and functionality cannot be achieved in another way that would conform
-audio description that is added to an audiovisual presentation by pausing the video so that there is time to add additional description diff --git a/guidelines/terms/20/flash.html b/guidelines/terms/20/flash.html index c8bda462a7..9530426c48 100644 --- a/guidelines/terms/20/flash.html +++ b/guidelines/terms/20/flash.html @@ -1,4 +1,4 @@ -
a pair of opposing changes in relative luminance that can cause seizures in some people if it is large enough and in the right frequency diff --git a/guidelines/terms/20/functionality.html b/guidelines/terms/20/functionality.html index 6f61b9632c..edd851bd16 100644 --- a/guidelines/terms/20/functionality.html +++ b/guidelines/terms/20/functionality.html @@ -1,7 +1,7 @@ -
processes and outcomes achievable through user action
-a flash or rapidly changing image sequence is below the threshold (i.e., content passes) if any of the following are true: diff --git a/guidelines/terms/20/human-language.html b/guidelines/terms/20/human-language.html index f070d1f51c..17cc924943 100644 --- a/guidelines/terms/20/human-language.html +++ b/guidelines/terms/20/human-language.html @@ -1,4 +1,4 @@ -
language that is spoken, written or signed (through visual or tactile means) to communicate diff --git a/guidelines/terms/20/idiom.html b/guidelines/terms/20/idiom.html index 259296dc85..f62d1deab2 100644 --- a/guidelines/terms/20/idiom.html +++ b/guidelines/terms/20/idiom.html @@ -1,4 +1,4 @@ -
phrase whose meaning cannot be deduced from the meaning of the individual words and diff --git a/guidelines/terms/20/image-of-text.html b/guidelines/terms/20/image-of-text.html index 92e3b94f8c..ddf784c34a 100644 --- a/guidelines/terms/20/image-of-text.html +++ b/guidelines/terms/20/image-of-text.html @@ -1,4 +1,4 @@ -
text that has been rendered in a non-text form (e.g., an image) in order to achieve diff --git a/guidelines/terms/20/informative.html b/guidelines/terms/20/informative.html index e6b5b45c89..51a1719a62 100644 --- a/guidelines/terms/20/informative.html +++ b/guidelines/terms/20/informative.html @@ -1,4 +1,4 @@ -
for information purposes and not required for conformance
diff --git a/guidelines/terms/20/input-error.html b/guidelines/terms/20/input-error.html index 6b967a46b7..1febee2c75 100644 --- a/guidelines/terms/20/input-error.html +++ b/guidelines/terms/20/input-error.html @@ -1,4 +1,4 @@ -information provided by the user that is not accepted
diff --git a/guidelines/terms/20/jargon.html b/guidelines/terms/20/jargon.html index aa3e3f12e2..043bab2102 100644 --- a/guidelines/terms/20/jargon.html +++ b/guidelines/terms/20/jargon.html @@ -1,4 +1,4 @@ -words used in a particular way by people in a particular field
diff --git a/guidelines/terms/20/keyboard-interface.html b/guidelines/terms/20/keyboard-interface.html index 50d55a00ab..2951cd86da 100644 --- a/guidelines/terms/20/keyboard-interface.html +++ b/guidelines/terms/20/keyboard-interface.html @@ -1,4 +1,4 @@ -interface used by software to obtain keystroke input
diff --git a/guidelines/terms/20/label.html b/guidelines/terms/20/label.html index cb8a61e515..b8624b4ae2 100644 --- a/guidelines/terms/20/label.html +++ b/guidelines/terms/20/label.html @@ -1,4 +1,4 @@ -text or other component with a text alternative that is presented to a user to identify a component within Web content
diff --git a/guidelines/terms/20/large-scale.html b/guidelines/terms/20/large-scale.html index d14580beb6..871bfd7c9b 100644 --- a/guidelines/terms/20/large-scale.html +++ b/guidelines/terms/20/large-scale.html @@ -1,4 +1,4 @@ -transactions where the person incurs a legally binding obligation or benefit
diff --git a/guidelines/terms/20/link-purpose.html b/guidelines/terms/20/link-purpose.html index e9abf0b3ee..bd1ab47a04 100644 --- a/guidelines/terms/20/link-purpose.html +++ b/guidelines/terms/20/link-purpose.html @@ -1,6 +1,6 @@ -nature of the result obtained by activating a hyperlink
-information captured from a real-world event and transmitted to the receiver with diff --git a/guidelines/terms/20/lower-secondary-education-level.html b/guidelines/terms/20/lower-secondary-education-level.html index a642496e60..12164166e0 100644 --- a/guidelines/terms/20/lower-secondary-education-level.html +++ b/guidelines/terms/20/lower-secondary-education-level.html @@ -1,4 +1,4 @@ -
the two or three year period of education that begins after completion of six years diff --git a/guidelines/terms/20/mechanism.html b/guidelines/terms/20/mechanism.html index bcaa507314..e2f2000a4d 100644 --- a/guidelines/terms/20/mechanism.html +++ b/guidelines/terms/20/mechanism.html @@ -1,4 +1,4 @@ -
process or technique for achieving a result diff --git a/guidelines/terms/20/media-alternative-for-text.html b/guidelines/terms/20/media-alternative-for-text.html index e1d55bbc4a..e1adab92ab 100644 --- a/guidelines/terms/20/media-alternative-for-text.html +++ b/guidelines/terms/20/media-alternative-for-text.html @@ -1,4 +1,4 @@ -
media that presents no more information than is already presented in text (directly diff --git a/guidelines/terms/20/name.html b/guidelines/terms/20/name.html index 6aa0f2923e..9530872de2 100644 --- a/guidelines/terms/20/name.html +++ b/guidelines/terms/20/name.html @@ -1,4 +1,4 @@ -
text by which software can identify a component within Web content to the user
diff --git a/guidelines/terms/20/navigated-sequentially.html b/guidelines/terms/20/navigated-sequentially.html index b22f97f533..23845c1801 100644 --- a/guidelines/terms/20/navigated-sequentially.html +++ b/guidelines/terms/20/navigated-sequentially.html @@ -1,7 +1,7 @@ -navigated in the order defined for advancing focus (from one element to the next) using a keyboard interface
-any content that is not a sequence of characters that can be programmatically determined or where the sequence is not expressing something in human language
diff --git a/guidelines/terms/20/normative.html b/guidelines/terms/20/normative.html index 379eac0c59..2fc3755f86 100644 --- a/guidelines/terms/20/normative.html +++ b/guidelines/terms/20/normative.html @@ -1,4 +1,4 @@ -required for conformance
diff --git a/guidelines/terms/20/on-a-full-screen-window.html b/guidelines/terms/20/on-a-full-screen-window.html index fb8445306a..61de699593 100644 --- a/guidelines/terms/20/on-a-full-screen-window.html +++ b/guidelines/terms/20/on-a-full-screen-window.html @@ -1,4 +1,4 @@ -on the most common sized desktop/laptop display with the viewport maximized
diff --git a/guidelines/terms/20/paused.html b/guidelines/terms/20/paused.html index 189b6261b1..38ce017635 100644 --- a/guidelines/terms/20/paused.html +++ b/guidelines/terms/20/paused.html @@ -1,6 +1,6 @@ -stopped by user request and not resumed until requested by user
-information that is not live
-rendering of the content in a form to be perceived by users
-six year time period that begins between the ages of five and seven, possibly without diff --git a/guidelines/terms/20/process.html b/guidelines/terms/20/process.html index 8fe199d3f5..9cafc80647 100644 --- a/guidelines/terms/20/process.html +++ b/guidelines/terms/20/process.html @@ -1,4 +1,4 @@ -
series of user actions where each action is required in order to complete an activity
diff --git a/guidelines/terms/20/programmatically-determined-link-context.html b/guidelines/terms/20/programmatically-determined-link-context.html index 51a40166a6..37c426f2c7 100644 --- a/guidelines/terms/20/programmatically-determined-link-context.html +++ b/guidelines/terms/20/programmatically-determined-link-context.html @@ -1,4 +1,4 @@ -additional information that can be programmatically determined from relationships with a link, combined with the link text, and presented to users in different modalities diff --git a/guidelines/terms/20/programmatically-determined.html b/guidelines/terms/20/programmatically-determined.html index c63f17c9ab..8e7e7d248e 100644 --- a/guidelines/terms/20/programmatically-determined.html +++ b/guidelines/terms/20/programmatically-determined.html @@ -1,4 +1,4 @@ -
set by software using methods that are supported by user agents, including assistive technologies
-serving only an aesthetic purpose, providing no information, and having no functionality
diff --git a/guidelines/terms/20/real-time-event.html b/guidelines/terms/20/real-time-event.html index b2724c659c..733f44553a 100644 --- a/guidelines/terms/20/real-time-event.html +++ b/guidelines/terms/20/real-time-event.html @@ -1,4 +1,4 @@ -event that a) occurs at the same time as the viewing and b) is not completely generated diff --git a/guidelines/terms/20/relationships.html b/guidelines/terms/20/relationships.html index bfe8639f0b..6748cda92a 100644 --- a/guidelines/terms/20/relationships.html +++ b/guidelines/terms/20/relationships.html @@ -1,6 +1,6 @@ -
meaningful associations between distinct pieces of content
-the relative brightness of any point in a colorspace, normalized to 0 for darkest diff --git a/guidelines/terms/20/relied-upon.html b/guidelines/terms/20/relied-upon.html index daa7485c16..39369cc00e 100644 --- a/guidelines/terms/20/relied-upon.html +++ b/guidelines/terms/20/relied-upon.html @@ -1,8 +1,8 @@ -
the content would not conform if that technology is turned off or is not supported
-text or number by which software can identify the function of a component within Web diff --git a/guidelines/terms/20/same-functionality.html b/guidelines/terms/20/same-functionality.html index a1a317bd2e..a88c26f451 100644 --- a/guidelines/terms/20/same-functionality.html +++ b/guidelines/terms/20/same-functionality.html @@ -1,4 +1,4 @@ -
same result when used
diff --git a/guidelines/terms/20/same-relative-order.html b/guidelines/terms/20/same-relative-order.html index 9f2b117e1f..fc9575195a 100644 --- a/guidelines/terms/20/same-relative-order.html +++ b/guidelines/terms/20/same-relative-order.html @@ -1,4 +1,4 @@ -same position relative to other items
diff --git a/guidelines/terms/20/satisfies-a-success-criterion.html b/guidelines/terms/20/satisfies-a-success-criterion.html index 00c5714c9f..9290f95ea1 100644 --- a/guidelines/terms/20/satisfies-a-success-criterion.html +++ b/guidelines/terms/20/satisfies-a-success-criterion.html @@ -1,6 +1,6 @@ -the success criterion does not evaluate to 'false' when applied to the page
-a self-contained portion of written content that deals with one or more related topics diff --git a/guidelines/terms/20/set-of-web-pages.html b/guidelines/terms/20/set-of-web-pages.html index 01c5b084c2..bf154da489 100644 --- a/guidelines/terms/20/set-of-web-pages.html +++ b/guidelines/terms/20/set-of-web-pages.html @@ -1,4 +1,4 @@ -
collection of Web pages that share a common purpose and that are created by the same author, group or organization.
diff --git a/guidelines/terms/20/sign-language-interpretation.html b/guidelines/terms/20/sign-language-interpretation.html index 0273357ba2..01ce1d2c35 100644 --- a/guidelines/terms/20/sign-language-interpretation.html +++ b/guidelines/terms/20/sign-language-interpretation.html @@ -1,4 +1,4 @@ -translation of one language, generally a spoken language, into a sign language
diff --git a/guidelines/terms/20/sign-language.html b/guidelines/terms/20/sign-language.html index 08af0dd1b5..3d93532688 100644 --- a/guidelines/terms/20/sign-language.html +++ b/guidelines/terms/20/sign-language.html @@ -1,8 +1,8 @@ -a language using combinations of movements of the hands and arms, facial expressions, or body positions to convey meaning
-a sensory experience that is not purely decorative and does not primarily convey important diff --git a/guidelines/terms/20/structure.html b/guidelines/terms/20/structure.html index acc6615aec..3001e18196 100644 --- a/guidelines/terms/20/structure.html +++ b/guidelines/terms/20/structure.html @@ -1,4 +1,4 @@ -
additional content that illustrates or clarifies the primary content diff --git a/guidelines/terms/20/synchronized-media.html b/guidelines/terms/20/synchronized-media.html index b6e40a9648..d05980741e 100644 --- a/guidelines/terms/20/synchronized-media.html +++ b/guidelines/terms/20/synchronized-media.html @@ -1,8 +1,8 @@ -
audio or video synchronized with another format for presenting information and/or with time-based interactive components, unless the media is a media alternative for text that is clearly labeled as such
-Text that is programmatically associated with non-text content or referred to from text that is programmatically associated with non-text content. diff --git a/guidelines/terms/20/text.html b/guidelines/terms/20/text.html index 19f23ab853..c6c8eace40 100644 --- a/guidelines/terms/20/text.html +++ b/guidelines/terms/20/text.html @@ -1,6 +1,6 @@ -
sequence of characters that can be programmatically determined, where the sequence is expressing something in human language
-words used in such a way that requires users to know exactly which definition to apply diff --git a/guidelines/terms/20/user-agent.html b/guidelines/terms/20/user-agent.html index 6780a2844d..0f05961d96 100644 --- a/guidelines/terms/20/user-agent.html +++ b/guidelines/terms/20/user-agent.html @@ -1,4 +1,4 @@ -
any software that retrieves and presents Web content for users
diff --git a/guidelines/terms/20/user-controllable.html b/guidelines/terms/20/user-controllable.html index 511c53cf71..5cfa38a219 100644 --- a/guidelines/terms/20/user-controllable.html +++ b/guidelines/terms/20/user-controllable.html @@ -1,4 +1,4 @@ -data that is intended to be accessed by users
diff --git a/guidelines/terms/20/user-interface-component.html b/guidelines/terms/20/user-interface-component.html index 732e68defd..d8671cb958 100644 --- a/guidelines/terms/20/user-interface-component.html +++ b/guidelines/terms/20/user-interface-component.html @@ -1,4 +1,4 @@ -a part of the content that is perceived by users as a single control for a distinct diff --git a/guidelines/terms/20/video-only.html b/guidelines/terms/20/video-only.html index 9dccbcfb40..2f4b2dbdbb 100644 --- a/guidelines/terms/20/video-only.html +++ b/guidelines/terms/20/video-only.html @@ -1,7 +1,7 @@ -
a time-based presentation that contains only video (no audio and no interaction)
-the technology of moving or sequenced pictures or images
diff --git a/guidelines/terms/20/viewport.html b/guidelines/terms/20/viewport.html index ed138d7a67..26db33dc02 100644 --- a/guidelines/terms/20/viewport.html +++ b/guidelines/terms/20/viewport.html @@ -1,4 +1,4 @@ -object in which the user agent presents content
diff --git a/guidelines/terms/20/visually-customized.html b/guidelines/terms/20/visually-customized.html index 3ae6cecc67..e39ceb9841 100644 --- a/guidelines/terms/20/visually-customized.html +++ b/guidelines/terms/20/visually-customized.html @@ -1,6 +1,6 @@ -the font, size, color, and background can be set
-a non-embedded resource obtained from a single URI using HTTP plus any other resources diff --git a/guidelines/terms/21/css-pixel.html b/guidelines/terms/21/css-pixel.html index 053b6f6842..e746e45dd9 100644 --- a/guidelines/terms/21/css-pixel.html +++ b/guidelines/terms/21/css-pixel.html @@ -1,4 +1,4 @@ -
visual angle of about 0.0213 degrees
diff --git a/guidelines/terms/21/down-event.html b/guidelines/terms/21/down-event.html index fa6fe4b5e6..68779ef1c3 100644 --- a/guidelines/terms/21/down-event.html +++ b/guidelines/terms/21/down-event.html @@ -1,4 +1,4 @@ -platform event that occurs when the trigger stimulus of a pointer is depressed
The down-event may have different names on different platforms, such as "touchstart" or "mousedown".
diff --git a/guidelines/terms/21/keyboard-shortcut.html b/guidelines/terms/21/keyboard-shortcut.html index fbb2e7ab69..a83d043351 100644 --- a/guidelines/terms/21/keyboard-shortcut.html +++ b/guidelines/terms/21/keyboard-shortcut.html @@ -1,4 +1,4 @@ -alternative means of triggering an action by the pressing of one or more keys
diff --git a/guidelines/terms/21/motion-animation.html b/guidelines/terms/21/motion-animation.html index b68f94033b..9da81ba9c0 100644 --- a/guidelines/terms/21/motion-animation.html +++ b/guidelines/terms/21/motion-animation.html @@ -1,4 +1,4 @@ -addition of steps between conditions to create the illusion of movement or to give a sense of a smooth transition
diff --git a/guidelines/terms/21/pointer-input.html b/guidelines/terms/21/pointer-input.html index e79281c0f8..c5077569c3 100644 --- a/guidelines/terms/21/pointer-input.html +++ b/guidelines/terms/21/pointer-input.html @@ -1,4 +1,4 @@ -input from a device that can target a specific coordinate (or set of coordinates) on a screen, @@ -7,4 +7,4 @@
See the Pointer Events definition for "pointer" [[pointerevents]].
-perceivable, programmatically determined section of content
In HTML, any area designated with a landmark role would be a region.
diff --git a/guidelines/terms/21/set-of-web-pages.html b/guidelines/terms/21/set-of-web-pages.html index 8add90c3f2..f435a86c58 100644 --- a/guidelines/terms/21/set-of-web-pages.html +++ b/guidelines/terms/21/set-of-web-pages.html @@ -1,4 +1,4 @@ -collection of web pages that share a common purpose and that are created by the same author, group or organization diff --git a/guidelines/terms/21/single-pointer.html b/guidelines/terms/21/single-pointer.html index 56caeadf43..46ea4f99f9 100644 --- a/guidelines/terms/21/single-pointer.html +++ b/guidelines/terms/21/single-pointer.html @@ -1,4 +1,4 @@ -
pointer input that operates with one point of contact with the screen, including single taps and clicks, double-taps and clicks, long presses, and path-based gestures
diff --git a/guidelines/terms/21/state.html b/guidelines/terms/21/state.html index 4a93c03953..6910f5c3bc 100644 --- a/guidelines/terms/21/state.html +++ b/guidelines/terms/21/state.html @@ -1,4 +1,4 @@ -dynamic property expressing characteristics of a user interface component that may change in response to user action or automated processes
diff --git a/guidelines/terms/21/status-message.html b/guidelines/terms/21/status-message.html index 108359d7ed..12711848c1 100644 --- a/guidelines/terms/21/status-message.html +++ b/guidelines/terms/21/status-message.html @@ -1,4 +1,4 @@ -change in content that is not a change of context, and that provides information to the user on the success or results of an action, on the waiting state of an application, on the progress of a process, or on the existence of errors
diff --git a/guidelines/terms/21/style-property.html b/guidelines/terms/21/style-property.html index 4b63029de8..2c21fba7c2 100644 --- a/guidelines/terms/21/style-property.html +++ b/guidelines/terms/21/style-property.html @@ -1,4 +1,4 @@ -property whose value determines the presentation (e.g. font, color, size, location, padding, volume, synthesized speech prosody) of content elements as they are rendered (e.g. onscreen, via loudspeaker, via braille display) by user agents
diff --git a/guidelines/terms/21/target.html b/guidelines/terms/21/target.html index 5626161c81..ab36d394cc 100644 --- a/guidelines/terms/21/target.html +++ b/guidelines/terms/21/target.html @@ -1,4 +1,4 @@ -region of the display that will accept a pointer action, such as the interactive area of a user interface component
diff --git a/guidelines/terms/21/up-event.html b/guidelines/terms/21/up-event.html index 548214dea7..03ae7c20c6 100644 --- a/guidelines/terms/21/up-event.html +++ b/guidelines/terms/21/up-event.html @@ -1,4 +1,4 @@ -platform event that occurs when the trigger stimulus of a pointer is released
The up-event may have different names on different platforms, such as "touchend" or "mouseup".
diff --git a/guidelines/terms/21/user-inactivity.html b/guidelines/terms/21/user-inactivity.html index 3bb0ef71d7..df98f1eb5c 100644 --- a/guidelines/terms/21/user-inactivity.html +++ b/guidelines/terms/21/user-inactivity.html @@ -1,4 +1,4 @@ -any continuous period of time where no user actions occur
The method of tracking will be determined by the web site or application.