Sensor Inputs
Inputs from motion, orientation, or location sensors. Provide alternatives that do not require device motion.
More Related Accessibility Terms
Hover Content
Transient content that appears on hover or focus, which must be dismissible, hoverable, and persistent while being hovered.
Pointer Cancellation
Design that allows users to cancel or undo pointer actions to prevent accidental activation.
Bypass Blocks
Mechanisms such as skip links and landmarks that let users jump past repeated content directly to main sections.
Character Key Shortcuts
Single‑letter keyboard shortcuts that must be remappable, turned off, or only active on focus to prevent accidental activation.
Contrast Ratio
The relative luminance of the lighter color divided by that of the darker color (each plus 0.05), from 1:1 to 21:1. WCAG AA requires 4.5:1 for normal text and 3:1 for large text and UI components.
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