Rules
SIA-R91!important
letter spacing in style
attribute is wide enough
SIA-R93!important
line height in style
attribute is wide enough
SIA-R92!important
word spacing in style
attribute is wide enough
SIA-R30<audio>
element content has text alternative
SIA-R23<audio>
element content has transcript
SIA-R29<audio>
element content is media alternative for text
SIA-R50<audio>
or <video>
avoids automatically playing audio
SIA-R49<audio>
or <video>
that plays automatically has a control mechanism
SIA-R48<audio>
or <video>
that plays automatically has no audio that lasts more than 3 seconds
SIA-R4<html>
document elements have a lang
attribute
SIA-R5<html>
document elements have a valid lang
attribute
SIA-R6<html>
document elements have matching lang
and xml:lang
attributes (DEPRECATED)
SIA-R95<iframe>
element with interactive elements does not have a negative tabindex
SIA-R13<iframe>
elements have an accessible name
SIA-R15<iframe>
elements with identical accessible names serve an equivalent purpose
SIA-R28<input type="image">
elements have an accessible name
SIA-R47<meta name="viewport">
elements do not prevent zoom
SIA-R63<object>
elements have an accessible name
SIA-R43<svg>
element with explicit role has non-empty accessible name
SIA-R76<th>
elements are semantic headers
SIA-R27<video>
element auditory content has accessible alternative
SIA-R22<video>
element auditory content has captions
SIA-R31<video>
element content is media alternative for text
SIA-R38<video>
element visual content has accessible alternative
SIA-R25<video>
element visual content has audio description
SIA-R36<video>
element visual content has description track (DEPRECATED)
SIA-R37<video>
element visual content has strict accessible alternative
SIA-R24<video>
element visual content has transcript
SIA-R35<video>
element visual-only content has accessible alternative
SIA-R32<video>
element visual-only content has audio track alternative
SIA-R34<video>
element visual-only content has description track (DEPRECATED)
SIA-R33<video>
element visual-only content has transcript
SIA-R26<video>
element visual-only content is media alternative for text
SIA-R52Adjacent links do not reference the same resource
SIA-R46All table header cells have assigned data cells
SIA-R20aria-*
attributes have a valid name
SIA-R18aria-*
states and properties are allowed
SIA-R19aria-*
states and properties have a valid value
SIA-R54Assertive live region is marked as atomic
SIA-R10autocomplete
attributes have a valid value
SIA-R12Buttons have an accessible name
SIA-R77Data cells are assigned at least one header cell
SIA-R102Document either has no repeated content, or a skip link as its first focusable element
SIA-R97Document has collapsible blocks of content
SIA-R98Document has heading at the start of its main content
SIA-R100Document has instrument to main content
SIA-R99Document has its main content inside a landmark
SIA-R101Document has no repeated content before the main content
SIA-R1Documents have a <title>
element
SIA-R59Documents have headings
SIA-R61Documents start with a level 1 heading
SIA-R65Element in sequential focus order has visible focus
SIA-R90Element with presentational children has no focusable content
SIA-R86Elements that are marked as decorative are not exposed to assistive technologies
SIA-R68Elements with a role have required children
SIA-R42Elements with a role have required parent
SIA-R16Elements with a role have required states and properties
SIA-R17Elements with aria-hidden="true"
are not focusable
SIA-R82Error message describes invalid form field value
SIA-R87First focusable element is link to main content
SIA-R75Font sizes are not too small
SIA-R8Form fields have an accessible name
SIA-R60Groups have an accessible name
SIA-R45Headers attribute specified on a cell refers to cells in the same table element
SIA-R64Heading has non-empty accessible name
SIA-R53Headings are structured
SIA-R78Headings of same level have text content between them
SIA-R109HTML page language subtag matches default language
SIA-R3id
attributes have a unique value
SIA-R39Image filename is accessible name for image
SIA-R67Images and SVG that are marked as decorative are not exposed to assistive technologies
SIA-R2Images have an accessible name
SIA-R55Landmark regions with identical accessible names serve an equivalent purpose
SIA-R56Landmarks of same type have a unique accessible name
SIA-R7lang
attributes within the <body>
element have a valid value
SIA-R11Links have an accessible name
SIA-R62Links in blocks of text are distinguishable
SIA-R81Links with identical accessible names and context serve equivalent purpose
SIA-R41Links with identical accessible names have equivalent purpose
SIA-R94menuitem
has non-empty accessible name
SIA-R70No obsolete or deprecated elements are used
SIA-R44Orientation of the page is not restricted using CSS transform property
SIA-R85Paragraphs of text are not all italics
SIA-R72Paragraphs of text are not all uppercase
SIA-R71Paragraphs of text are not justified
SIA-R74Paragraphs of text do not have font sizes defined in absolute units
SIA-R80Paragraphs of text do not have line heights defined in absolute units
SIA-R73Paragraphs of text have sufficient line height
SIA-R57Perceivable text content is included in a landmark
SIA-R79Preformatted text represents either code or a figure
SIA-R9Refreshes implemented using the <meta>
element have no delay
SIA-R96Refreshes implemented using the <meta>
element have no delay, without exception
SIA-R40Regions have an accessible name
SIA-R58Repeated blocks of content can be bypassed
SIA-R110role
attributes have at least one valid value
SIA-R21role
attributes have only valid values
SIA-R84Scrollable elements are keyboard accessible
SIA-R111Target Size (enhanced)
SIA-R113Target Size (minimum)
SIA-R66Text has enhanced contrast
SIA-R69Text has minimum contrast
SIA-R89Text in link has enhanced contrast
SIA-R88Text in link has minimum contrast
SIA-R104Text in widget has enhanced contrast
SIA-R103Text in widget has minimum contrast
SIA-R83Text nodes are not clipped when text is resized
SIA-R14Visible labels are included in accessible names