aria-controls - Accessibility | MDN (2024)

When an interactive widget or element, be it a combobox, tab, button, etc., is used to adjust or modify another element or component in a document or application, the aria-controls attribute can be used to programmatically associate the corresponding element or elements with the controlling element. The aria-controls attribute identifies the element (or elements) whose contents or presence are controlled by the element on which the attribute is set, regardless of what type of interaction initiates the impacted behavior.

A combobox element has aria-controls set to a value that refers to the element that serves as the popup. The aria-controls only needs to be set when the popup is visible, but it is valid and easier to program to reference an element that is not visible.

Other examples of controls include:

• The button parts of an accordion widget that toggle the visibility of their associated panel content. Each button may have an aria-controls specified, referencing the ID of the element containing the content associated with the invoking control.
• An element with a role of scrollbar: the scrollbar requires an aria-controls attribute referencing the ID of the element it controls.
• A group of tabs that each display a different tab panel: each element with role="tab" has an aria-controls attribute referencing its associated tabpanel.

In this tabs example, each tab controls one tabpanel:

<div class="tab-interface"> <div role="tablist" aria-label="Sample Tabs"> <span role="tab" aria-selected="true" aria-controls="panel-1" id="tab-1" tabindex="0"> First Tab </span> <span role="tab" aria-selected="false" aria-controls="panel-2" id="tab-2" tabindex="-1"> Second Tab </span> <span role="tab" aria-selected="false" aria-controls="panel-3" id="tab-3" tabindex="-1"> Third Tab </span> </div> <div id="panel-1" role="tabpanel" tabindex="0" aria-labelledby="tab-1"> <p>Content for the first panel</p> </div> <div id="panel-2" role="tabpanel" tabindex="0" aria-labelledby="tab-2" class="display-none"> <p>Content for the second panel</p> </div> <div id="panel-3" role="tabpanel" tabindex="0" aria-labelledby="tab-3" class="display-none"> <p>Content for the third panel</p> </div></div>

Note: ARIA only modifies the accessibility tree for an element, identifying how assistive technology can present the content to users. ARIA doesn't change any implicit functionality or styling.

id list

A space-separated list of one or more ID values referencing the elements being controlled by the current element

Element.ariaControlsElements

The ariaControlsElements property is part of each element's interface. Its value is a list of Elements corresponding to the ID values specified in the aria-controls attribute.

• aria-owns