docs: update accessibility and keyboard-nav specs

Author: kendo-bot

components/dockmanager/accessibility/wai-aria-support.md

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+---
+title: Wai-Aria Support
+page_title: Telerik UI for Blazor DockManager Documentation | DockManager Accessibility
+description: "Get started with the Telerik UI for Blazor DockManager and learn about its accessibility support for WAI-ARIA, Section 508, and WCAG 2.2."
+tags: telerik,blazor,accessibility,wai-aria,wcag
+slug: dockmanager-wai-aria-support 
+position: 50 
+---
+
+# Blazor DockManager Accessibility
+
+@[template](/_contentTemplates/common/parameters-table-styles.md#table-layout)
+
+
+
+Out of the box, the Telerik UI for Blazor DockManager provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
+
+
+The DockManager is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 AA](https://www.w3.org/TR/WCAG22/) standards and [Section 508](https://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#keyboard-navigation) for its `component` role, provides options for managing its focus and is tested against the most popular screen readers.
+
+## WAI-ARIA
+
+
+This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.
+
+
+The DockManager component consists of multiple inner panes, each containing tools, tabs, and content that can be resized, rearranged, and interacted with.
+
+| Selector | Attribute | Usage |
+| -------- | --------- | ----- |
+| `.k-dock-manager` | `role=application` | Indicates that the DockManager has its own keyboard navigation implemented. |
+|  | `aria-live=polite` | Defines dynamic content changes within the DockManager container that need to be announced by screen readers. |
+| `.k-dock-navigator` | `aria-hidden=true` | The navigator needs to be hidden from the readers as it appears only on drag. |
+
+### DockManager Toolbar
+
+
+The Toolbar in the DockManager element of the component should implement the specification for the **Toolbar** component.
+
+[Toolbar accessibility specification]({{Toolbar_a11y_link}})
+
+### DockManager TabStrip
+
+
+The TabStrip in the DockManager element of the component should implement the specification for the **TabStrip** component.
+
+[TabStrip accessibility specification]({{TabStrip_a11y_link}})
+
+### DockManager Splitter
+
+
+The Splitter in the DockManager element of the component should implement the specification for the **Splitter** component.
+
+[Splitter accessibility specification]({{Splitter_a11y_link}})
+
+### DockManager Window
+
+
+The Window elements in the DockManager element of the component should implement the specification for the **Window** component.
+
+[Window accessibility specification]({{Window_a11y_link}})
+
+## Section 508
+
+
+The DockManager is fully compliant with the [Section 508 requirements](http://www.section508.gov/).
+
+## Testing
+
+
+The DockManager has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers.
+
+> To report any accessibility issues, contact the team through the [Telerik Support System](https://www.telerik.com/account/support-center).
+
+### Screen Readers
+
+
+The DockManager has been tested with the following screen readers and browsers combinations:
+
+| Environment | Tool |
+| ----------- | ---- |
+| Firefox | NVDA |
+| Chrome | JAWS |
+| Microsoft Edge | JAWS |
+
+
+
+## Keyboard Navigation
+
+For details on how the keyboard navigation works in Telerik UI for Blazor, refer to the [Accessibility Overview](slug://accessibility-overview#keyboard-navigation) article.
+
+## See Also
+
+* [Blazor Dock Manager Demos](https://demos.telerik.com/blazor-ui/dockmanager/overview)
+* [Accessibility in Telerik UI for Blazor](slug://accessibility-overview)