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Web Accessibility Exam Prep > WCAG 2.1 Success Criteria > Flashcards

WCAG 2.1 Success Criteria Flashcards

1
Q

WCAG Success Criterion 1.1.1 Non-text Content

A

Level A

All non-text content that is presented to the user has a text alternative that serves the equivalent purpose

some exceptions

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2
Q

WCAG Success Criterion 1.2.1 Audio-only and Video-only (Prerecorded)

A

Level A

An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.

Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.

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3
Q

WCAG Success Criterion 1.2.2 Captions (Prerecorded)

A

Level A

Captions are provided for all prerecorded audio content in synchronized media, except when the media is a media alternative for text and is clearly labeled as such.

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4
Q

WCAG Success Criterion 1.2.3 Audio Description or Media Alternative (Prerecorded)

A

Level A

An alternative for time-based media or audio description of the prerecorded video content is provided for synchronized media, except when the media is a media alternative for text and is clearly labeled as such.

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5
Q

WCAG Success Criterion 1.2.4 Captions (Live)

A

Level AA

Captions are provided for all live audio content in synchronized media.

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6
Q

WCAG Success Criterion 1.2.5 Audio Description (Prerecorded)

A

Level AA

Audio description is provided for all prerecorded video content in synchronized media.

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7
Q

WCAG Success Criterion 1.2.6 Sign Language (Prerecorded)

A

Level AAA

Sign language interpretation is provided for all prerecorded audio content in synchronized media.

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8
Q

WCAG Success Criterion 1.2.7 Extended Audio Description (Prerecorded)

A

Level AAA

Where pauses in foreground audio are insufficient to allow audio descriptions to convey the sense of the video, extended audio description is provided for all prerecorded video content in synchronized media.

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9
Q

WCAG Success Criterion 1.2.8 Media Alternative (Prerecorded)

A

Level AAA

An alternative for time-based media is provided for all prerecorded synchronized media and for all prerecorded video-only media.

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10
Q

WCAG Success Criterion 1.2.9 Audio-only (Live)

A

Level AAA

An alternative for time-based media that presents equivalent information for live audio-only content is provided.

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11
Q

WCAG Success Criterion 1.3.1 Info and Relationships

A

Level A

Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.

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12
Q

WCAG Success Criterion 1.3.2 Meaningful Sequence

A

Level A

When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.

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13
Q

WCAG Success Criterion 1.3.3 Sensory Characteristics

A

Level A

Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, color, size, visual location, orientation, or sound.

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14
Q

WCAG Success Criterion 1.3.4 Orientation

A

Level AA

Content does not restrict its view and operation to a single display orientation, such as portrait or landscape, unless a specific display orientation is essential.

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15
Q

WCAG Success Criterion 1.3.5 Identify Input Purpose

A

Level AA

The purpose of each input field collecting information about the user can be programmatically determined

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16
Q

WCAG Success Criterion 1.3.6 Identify Purpose

A

Level AAA

In content implemented using markup languages, the purpose of user interface components, icons, and regions can be programmatically determined.

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17
Q

WCAG Success Criterion 1.4.1 Use of Color

A

Level A

Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.

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18
Q

WCAG Success Criterion 1.4.2 Audio Control

A

Level A

If any audio on a Web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level.

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19
Q

WCAG Success Criterion 1.4.3 Contrast (Minimum)

A

Level AA

The visual presentation of text and images of text has a contrast ratio of at least 4.5:1

Large text has a contrast ratio of at least 3:1

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20
Q

WCAG Success Criterion 1.4.4 Resize Text

A

Level AA

Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.

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21
Q

WCAG Success Criterion 1.4.5 Images of Text

A

Level AA

text is used to convey information rather than images of text

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22
Q

WCAG Success Criterion 1.4.6 Contrast (Enhanced)

A

Level AAA

The visual presentation of text and images of text has a contrast ratio of at least 7:1

Large text has a contrast ratio of at least 4.5:1

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23
Q

WCAG Success Criterion 1.4.7 Low or No Background Audio

A

Level AAA

For prerecorded audio-only content that (1) contains primarily speech in the foreground, (2) is not an audio CAPTCHA or audio logo, and (3) is not vocalization intended to be primarily musical expression such as singing or rapping, at least one of the following is true:

No Background
The audio does not contain background sounds.

Turn Off
The background sounds can be turned off.

20 dB
The background sounds are at least 20 decibels lower than the foreground speech content, with the exception of occasional sounds that last for only one or two seconds.

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24
Q

WCAG Success Criterion 1.4.8 Visual Presentation

A

Level AAA

For the visual presentation of blocks of text, a mechanism is available to achieve the following:

  • Foreground and background colors can be selected by the user.
  • Width is no more than 80 characters or glyphs (40 if CJK).
  • Text is not justified (aligned to both the left and the right margins).
  • Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.
  • Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window.
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25
Q

WCAG Success Criterion 1.4.9 Images of Text (No Exception)

A

Level AAA

Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed.

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26
Q

WCAG Success Criterion 1.4.10 Reflow

A

Level AA

Content can be presented without loss of information or functionality, and without requiring scrolling in two dimensions for:

Vertical scrolling content at a width equivalent to 320 CSS pixels;
Horizontal scrolling content at a height equivalent to 256 CSS pixels.

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27
Q

WCAG Success Criterion 1.4.11 Non-text Contrast

A

Level AA

The visual presentation of UI components/states and the parts of graphics required to understand the content have a contrast ratio of at least 3:1 against adjacent color(s)

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28
Q

WCAG Success Criterion 1.4.12 Text Spacing

A

Level AA

In content implemented using markup languages that support the following text style properties, no loss of content or functionality occurs by setting all of the following and by changing no other style property:

  • Line height (line spacing) to at least 1.5 times the font size;
  • Spacing following paragraphs to at least 2 times the font size;
  • Letter spacing (tracking) to at least 0.12 times the font size;
  • Word spacing to at least 0.16 times the font size.
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29
Q

WCAG Success Criterion 1.4.13 Content on Hover or Focus

A

Level AA

Where receiving and then removing pointer hover or keyboard focus triggers additional content to become visible and then hidden, the following are true:

  • Dismissible
    A mechanism is available to dismiss the additional content without moving pointer hover or keyboard focus, unless the additional content communicates an input error or does not obscure or replace other content;
  • Hoverable
    If pointer hover can trigger the additional content, then the pointer can be moved over the additional content without the additional content disappearing;
  • Persistent
    The additional content remains visible until the hover or focus trigger is removed, the user dismisses it, or its information is no longer valid.
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30
Q

WCAG Success Criterion 2.1.1 Keyboard

A

Level A

All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes

exceptions for functions that depend on user’s movement or path (drawing, etc.)

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31
Q

WCAG Success Criterion 2.1.2 No Keyboard Trap

A

Level A

If keyboard focus can be moved to a component of the page using a keyboard interface, then focus can be moved away from that component using only a keyboard interface, and, if it requires more than unmodified arrow or tab keys or other standard exit methods, the user is advised of the method for moving focus away.

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32
Q

WCAG Success Criterion 2.1.3 Keyboard

A

Level AAA

All functionality is possible using just the keyboard with no exceptions.

33
Q

WCAG Success Criterion 2.1.4 Character Key Shortcuts

A

Level A

If a custom keyboard shortcut is used it can either be TURNED OFF, REMAPED, or is ACTIVE ONLY ON FOCUS

34
Q

WCAG Success Criterion 2.2.1 Timing Adjustable

A

Level A

If there’s a time limit, it can be either:
- Turned off
- Adjusted
- Extended
- is part of a Real-Time Event
- is Essential
- Longer than 20 hours

35
Q

WCAG Success Criterion 2.2.2 Pause, Stop, Hide

A

Level A

  • Moving, blinking, scrolling
    For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it unless the movement, blinking, or scrolling is part of an activity where it is essential
  • Auto-updating
    For any auto-updating information that (1) starts automatically and (2) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it or to control the frequency of the update unless the auto-updating is part of an activity where it is essential.
36
Q

WCAG Success Criterion 2.2.3 No Timing

A

Level AAA

Timing is not an essential part of the event or activity presented by the content, except for non-interactive synchronized media and real-time events.

37
Q

WCAG Success Criterion 2.2.4 Interruptions

A

Level AAA

Interruptions can be postponed or suppressed by the user, except interruptions involving an emergency.

38
Q

WCAG Success Criterion 2.2.5 Re-authenticating

A

Level AAA

When an authenticated session expires, the user can continue the activity without loss of data after re-authenticating.

39
Q

WCAG Success Criterion 2.2.6 Timeouts

A

Level AAA

Users are warned of the duration of any user inactivity that could cause data loss, unless the data is preserved for more than 20 hours when the user does not take any actions.

40
Q

WCAG Success Criterion 2.3.1 Three Flashes or Below Threshold

A

Level A

Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds.

41
Q

WCAG Success Criterion 2.3.2 Three Flashes

A

Level AAA

Web pages do not contain anything that flashes more than three times in any one second period.

42
Q

WCAG Success Criterion 2.3.3 Animation from Interactions

A

Level AAA

Motion animation triggered by interaction can be disabled, unless the animation is essential to the functionality or the information being conveyed.

43
Q

WCAG Success Criterion 2.4.1 Bypass Blocks

A

Level A

A mechanism is available to bypass blocks of content that are repeated on multiple Web pages.

44
Q

WCAG Success Criterion 2.4.2 Page Titled

A

Level A

Web pages have titles that describe topic or purpose.

45
Q

WCAG Success Criterion 2.4.3 Focus Order

A

Level A

If a Web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.

46
Q

WCAG Success Criterion 2.4.4 Link Purpose (In Context)

A

Level A

The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link context, except where the purpose of the link would be ambiguous to users in general.

47
Q

WCAG Success Criterion 2.4.5 Multiple Ways

A

Level AA

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.

48
Q

WCAG Success Criterion 2.4.6 Headings and Labels

A

Level AA

Headings and labels describe topic or purpose.

49
Q

WCAG Success Criterion 2.4.7 Focus Visible

A

Level AA

Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.

50
Q

WCAG Success Criterion 2.4.8 Location

A

Level AAA

Information about the user’s location within a set of Web pages is available.

51
Q

WCAG Success Criterion 2.4.9 Link Purpose (Link Only)

A

Level AAA

A mechanism is available to allow the purpose of each link to be identified from link text alone, except where the purpose of the link would be ambiguous to users in general.

52
Q

WCAG Success Criterion 2.4.10 Section Headings

A

Level AAA

Section headings are used to organize the content.

53
Q

WCAG Success Criterion 2.5.1 Pointer Gestures

A

Level A

All functionality that uses multipoint or path-based gestures for operation can be operated with a single pointer without a path-based gesture, unless a multipoint or path-based gesture is essential.

54
Q

WCAG Success Criterion 2.5.2 Pointer Cancellation

A

Level A

If functionality can be operated with a single pointer, at least one of the following is true:
- No Down-Event
- Abort of Undo
- Up Reversal
- Essential

55
Q

WCAG Success Criterion 2.5.3 Label in Name

A

Level A

For user interface components with labels that include text or images of text, the name contains the text that is presented visually.

56
Q

WCAG Success Criterion 2.5.4 Motion Actuation

A

Level A

Functionality that can be operated by device motion or user motion can also be operated by user interface components and responding to the motion can be disabled to prevent accidental actuation

57
Q

WCAG Success Criterion 2.5.5 Target Size

A

Level AAA

The size of the target for pointer inputs is at least 44 by 44 CSS pixels

58
Q

WCAG Success Criterion 2.5.6 Concurrent Input Mechanisms

A

Level 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.

59
Q

WCAG Success Criterion 3.1.1 Language of Page

A

Level A

The default language of each Web page can be programmatically determined.

60
Q

WCAG Success Criterion 3.1.2 Language of Parts

A

Level AA

The language of each passage or phrase in the content can be programmatically determined.

61
Q

WCAG Success Criterion 3.1.3 Unusual Words

A

Level AAA

A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way, including idioms and jargon.

62
Q

WCAG Success Criterion 3.1.4 Abbreviations

A

Level AAA

A mechanism for identifying the expanded form or meaning of abbreviations is available.

63
Q

WCAG Success Criterion 3.1.5 Reading Level

A

Level AAA

When text requires reading ability more advanced than the lower secondary education level after removal of proper names and titles, supplemental content, or a version that does not require reading ability more advanced than the lower secondary education level, is available.

64
Q

WCAG Success Criterion 3.1.6 Pronunciation

A

Level AAA

A mechanism is available for identifying specific pronunciation of words where meaning of the words, in context, is ambiguous without knowing the pronunciation.

65
Q

WCAG Success Criterion 3.2.1 On Focus

A

Level A

When any user interface component receives focus, it does not initiate a change of context.

66
Q

WCAG Success Criterion 3.2.2 On Input

A

Level A

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.

67
Q

WCAG Success Criterion 3.2.3 Consistent Navigation

A

Level AA

Navigational mechanisms that are repeated on multiple Web pages within a set of Web pages occur in the same relative order each time they are repeated, unless a change is initiated by the user.

68
Q

WCAG Success Criterion 3.2.4 Consistent Identification

A

Level AA

Components that have the same functionality within a set of Web pages are identified consistently.

69
Q

WCAG Success Criterion 3.2.5 Change on Request

A

Level AAA

Changes of context are initiated only by user request or a mechanism is available to turn off such changes.

70
Q

WCAG Success Criterion 3.3.1 Error Identification

A

Level A

If an input error is automatically detected, the item that is in error is identified and the error is described to the user in text.

71
Q

WCAG Success Criterion 3.3.2 Labels or Instructions

A

Level A

Labels or instructions are provided when content requires user input.

72
Q

WCAG Success Criterion 3.3.3 Error Suggestion

A

Level AA

If an input error is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content.

73
Q

WCAG Success Criterion 3.3.4 Error Prevention (Legal, Financial, Data)

A

Level AA

For Web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, at least one of the following is true:

REVERSIBLE
CHECKED for errors
CONFIRMED before submission

74
Q

WCAG Success Criterion 3.3.5 Help

A

Level AAA

Context-sensitive help is available.

75
Q

WCAG Success Criterion 3.3.6 Error Prevention (All)

A

Level AAA

For Web pages that require the user to submit information, at least one of the following is true:

REVERSIBLE
CHECKED for errors
CONFIRMED before submission

76
Q

WCAG Success Criterion 4.1.1 Parsing

A

DEPRECATED

Level A

In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features.

77
Q

WCAG Success Criterion 4.1.2 Name, Role, Value

A

Level A

For all user interface components, the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies.

i.e. use ARIA when needed

78
Q

WCAG Success Criterion 4.1.3 Status Messages

A

Level AA

In content implemented using markup languages, status messages can be programmatically determined through role or properties such that they can be presented to the user by assistive technologies without receiving focus.

Web Accessibility Exam Prep (9 decks)

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