Slider
A slider moves a thumb along a track to choose one value or range.
A real example
A price filter uses two thumbs: one sets the lowest price and one sets the highest.
Main parts
- 01Visible label
- 02Interaction target
- 03Current state
- 04Keyboard behavior
Use it when
Use it when a rough or relative choice matters more than typing an exact number.
Do not use it when
For exact values, show the current number and support the keyboard. Otherwise, avoid a slider.
Name used in code
<input type="range"> Before you ship
Give assistive tools the control’s name (accessible name), purpose (role), value, and state. Check keyboard use, visible focus, target size, disabled and busy states, feedback, and recovery.
Outcome: Use Slider to solve this user need without losing the current context. User context: A price filter uses two thumbs: one sets the lowest price and one sets the highest. Recommended pattern: Slider. Why it fits: Use it when a rough or relative choice matters more than typing an exact number. Do not use it when: For exact values, show the current number and support the keyboard. Otherwise, avoid a slider. Product requirements: Define the default, loading, empty, error, success, and recovery states. Keep user input. Give clear feedback after every action. Accessibility and resilience: Use semantic HTML, full keyboard access, and visible focus. Make the layout work when zoomed and support reduced motion. Follow the project’s current rules. Do not add a new UI library unless the project already uses it. Acceptance criteria: The main task works with keyboard only and at 320px width. Focus and status changes are announced. Check loading, failure, retry, cancel, and reduced-motion paths. Evidence and limits (evidence boundary): The standard covers only the listed scope. It does not choose the visual style, product decision, or Vibulary example. Unknowns to confirm: Product wording, data source, analytics events, supported devices and languages, and platform limits.
Check this request
Review the current use of Slider. Definition: A slider moves a thumb along a track to choose one value or range. Release checks: Give assistive tools the control’s name (accessible name), purpose (role), value, and state. Check keyboard use, visible focus, target size, disabled and busy states, feedback, and recovery. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.