ARIA 1.1 defines multiple “properties” that can be applied to elements. Unlike ARIA states, most properties are likely to stay static when a page is loaded instead of changing with user interaction. Properties are inserted into elements as follows: <element aria-property="value"></element> . Example:

<button aria-haspopup="true"> Options. </button>

A screenreader will announce this button with ‘Options, button menu’ or something similar.

There are 38 properties that can be used in ARIA. They fall into 4 categories as defined by the W3C. The categories are:

Widget Attributes
Properties that give information about user input elements.
Live Region Attributes
Properties that are specific to regions that will update while the page is being viewed.
Drag-and-Drop Attributes
Properties of drag-and-drop input elements.
Relationship Attributes
Properties that give information about elements' relationships to other elements.

Note: ARIA is constantly being updated by the W3C. Read the latest working draft.

The properties are given below, along with their category, brief description, and allowed value lists or type of input allowed.

Property (links to WAI-ARIA 1.1 specs) Category Description Allowed Values (default values bolded)
aria-activedescendant Relationship attributes Currently active descendant of a composite widget String - ID of descendant
aria-atomic Live region attributes Indicates whether assistive technologies will present the entire element (or only parts of it) when the element is changed false, true
aria-autocomplete Widget attributes Defines if and how autocomplete suggestions are shown none, both, inline, list
aria-colcount Relationship attributes Defines the total number of columns in a table, grid, or treegrid integer
aria-colindex Relationship attributes Defines an element’s column index or position with respect to the total number of columns within a table, grid, or treegrid integer
aria-colspan Relationship attributes Defines the number of columns spanned by a cell or gridcell within a table, grid, or treegrid integer
aria-controls Relationship attributes Element(s) controlled by current element String/list - ID(s) of element(s)
aria-describedby Relationship attributes Element(s) that describe the current element String/list - ID(s) of element(s)
aria-details Relationship attributes Identifies the element that provides a detailed, extended description for the object String/list - ID(s) of element(s)
aria-dropeffect Drag-and-drop attributes * DEPRECATED * Defines what functions can be performed when a dragged object is released on the target none, copy, execute, link, move, popup
aria-errormessage Widget attributes Identifies the element that provides an error message for the object ID reference
aria-flowto Relationship attributes Next element(s) in alternate reading order String/list - ID(s) of element(s)
aria-haspopup Widget attributes The element can trigger a popup context menu false, true
aria-keyshortcuts Widget attributes Indicates keyboard shortcuts that an author has implemented to activate or give focus to an element String
aria-label Widget attributes Defines a label for the element (only used when label text not visible on screen) String
aria-labelledby Relationship attributes Element(s) that label the current element String/list - ID(s) of element(s)
aria-level Widget attributes Gives hierarchical level of the element within a structure such as a tree or nested items Integer greater than or equal to 1
aria-live Live region attributes Indicates an element will be updated and gives the type of updates the user can expect off, assertive, polite
aria-modal Widget attributes Indicates whether an element is modal when displayed false, *true
aria-multiline Widget attributes Text box accepts multiple lines of input, not just a single line false, true
aria-multiselectable Widget attributes User can select more than one item in a list false, true
aria-orientation Widget attributes Defines the element orientation horizontal, vertical
aria-owns Relationship attributes Element(s) that are owned by the current element (and not denoted as such by the DOM) String/list - ID(s) of element(s)
aria-placeholder Widget attributes Defines a short hint (a word or short phrase) intended to aid the user with data entry when the control has no value String
aria-posinset Relationship attributes Element’s position in a set of items Integer
aria-readonly Widget attributes Element is not editable but is still readable false, true
aria-relevant Live region attributes Defines what constitutes a update requiring notification in a live region additions text, additions, all, removals, text
aria-required Widget attributes User input is required false, true
aria-roledescription Widget attributes Defines a human-readable description for the role of an element  
aria-rowcount Relationship attributes Defines the total number of rows in a table, grid, or treegrid integer
aria-rowindex Relationship attributes Defines an element’s row index or position with respect to the total number of rows within a table, grid, or treegrid integer
aria-rowspan Relationship attributes Defines the number of rows spanned by a cell or gridcell within a table, grid, or treegrid integer
aria-setsize Relationship attributes Number of items in current set integer
aria-sort Widget attributes Gives the direction that items are sorted in a table or grid column none, ascending, descending, other
aria-valuemax Widget attributes Maximum allowed value for a range selector Number
aria-valuemin Widget attributes Minimum allowed value for a range selector Number
aria-valuenow Widget attributes Current value for a range selector Number (between aria-valuemin and aria-valuemax)
aria-valuetext Widget attributes Human readable text alternative to a value for a range selector String
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