Value in range

Definition	Range widget must have value between minimum and maximum values.
Purpose	ARIA roles, properties and states describes the features of interactive widgets to users of assistive technologies, especially screen reader users.
Required	Yes for HTML5 and ARIA Techniques ruleset mapping
WCAG 2.0 Success Criteria	4.1.2 Name, Role, Value (Level A, Primary Success Criterion) Other Related Success Criterion: 1.3.1 Info and Relationships (Level A) 3.3.2 Labels or Instructions (Level A)
Rule Category	Widgets/Scripting
Scope	Element
Target Resources	Range widgets
Techniques	Use the `aria-valuenow`, `aria-valuemin` and `aria-valuemax` are accurately defined.
Informational Links	Accessible Rich Internet Applications (WAI-ARIA) 1.0 Specification: Widget Roles G108: Using markup features to expose the name and role, allow user-settable properties to be directly set, and provide notification of changes ARIA5: Using WAI-ARIA state and property attributes to expose the state of a user interface component OAA Web Accessibility ARIA Examples