A form may be a mix of host language form controls, scripted controls, and hyperlinks.

ARIA aim's to be platform and browser independent with multi-language support. Authors MUST ensure an element with role combobox contains or owns a text input element with role textbox or searchbox and that the text input has aria-multiline set to false. For example, if multiple changes to a live region should be spoken as a single unit of speech, authors MAY set aria-busy to true while the changes are being made and then set it to false when the changes are complete and ready to be spoken. Before we get to some examples, I want to explain what ARIA roles and attributes are and how they work. See related aria-describedby. This element is the combobox popup. When the alert dialog is displayed, authors SHOULD set focus to an active element within the alert dialog, such as a form edit field or an OK button. If nothing happens, download the GitHub extension for Visual Studio and try again. When the rendered value cannot be accurately represented as a number, authors SHOULD use the aria-valuetext attribute in conjunction with aria-valuenow to provide a user-friendly representation of the range's current value.

Tapered prompts in voice browsing. See related marquee. Host languages elements, having implicit presentational roles for which no roles, may be applied, MUST never be exposed to in the accessibility tree. To accommodate differences in language-building approaches, the requirements are both general and modularization-specific. A taxonomy can comprise part of the formal definition of an ontology. The following two examples show the use of aria-roledescription to indicate that a non-interactive container is a "slide" in a web-based presentation application. ", The following examples show the use of aria-roledescription to indicate that a button in a web-based email client is associated with an "attachment.". However, it causes user agents to enter "quirks" mode which affects CSS rendering, and causes conformance checkers to fail the document due to the added ARIA attributes. In this case, aria-expanded is needed to convey the expandable/collapsible nature of the combobox. Typically, a fixed separator widget is used to toggle one of the sections between expanded and collapsed states.

they're used to log you in.
For guidance, see the keyboard shortcuts section of the WAI-ARIA Authoring Practices Guide [wai-aria-practices-1.1].

There are no detected errors in the value.

The columnheader establishes a relationship between it and all cells in the corresponding column. Please check the errata for any errors or issues

If the grid allows multiple gridcells to be selected, the author SHOULD set aria-multiselectable to true on the element with role grid. Indicates that user input is required on the element before a form may be submitted. Alternatively, aria-details may refer to a link to a web page having the extended description, as shown in the following example.

If the listitem elements have display: list-item and a list-style: disc, NVDA will announce "bullet, accessible name" for each list item. In a grid that provides cell content editing functions, if the content of a focusable gridcell element is not editable, authors MAY set aria-readonly to true on the gridcell element.

/* a nested list should have a different glyph */, many other things not supported by Internet Explorer.
Simplifying the user interface by collapsing sections may improve usability for all, including those with cognitive or developmental disabilities. Chrome + JAWS have no issues announcing the number of items in a list, or navigating "grouped" lists regardless of role="presentation" being used or not. However, user agents MUST ignore any non-global, role-specific WAI-ARIA states and properties, unless it is on an inherited presentational role where an explicit role is applied. There is no implicit role for "foo", so only the contents are exposed.

When defining the column span of cells or gridcells in a native table, authors SHOULD use the host language's attribute instead of aria-colspan.

The roles, state, and properties defined in this specification do not form a complete web language or format.

In both HTML and SVG, tabindex is an important way browsers support keyboard focus navigation for implementations of WAI-ARIA; authoring and debugging tools may check to make sure tabindex values are properly set.

A formal RDF/OWL representation of all the information presented here is available in Schemata Appendix. For example, this indicates whether a portion of a tree is expanded or collapsed.

Conformance checkers MAY signal an error or warning when a WAI-ARIA role is used on elements with strong native semantics, but as described above, user agents MUST still use the value of the semantic of the WAI-ARIA role when exposing the element to accessibility APIs unless the native host language semantic is permanently presentational. This is expressed in the form "state or property name is new default value". Any additional press of the main navigation key (generally the TAB key) will move out of the container to the next widget. Elements with the role timer have an implicit aria-live value of off. Assistive technologies MAY reserve some cells of a Braille display to render the status.

WAI-ARIA provides a collection of accessibility states and properties which are used to support platform accessibility APIs on various operating system platforms.

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