Device Independence

A web design principle that ensures content and functionality are accessible regardless of the input device or interaction method used to access them. Device-independent design avoids assumptions about how users will interact with content — not relying solely on mouse events, specific screen sizes, or particular input mechanisms. Instead, it supports keyboard navigation, touch, voice, switch access, eye tracking, and other input methods interchangeably. This principle is foundational to both web accessibility (ensuring people using assistive technologies can interact with content) and responsive design (ensuring content works across desktop, mobile, and emerging devices). WCAG addresses device independence through guidelines on keyboard accessibility, pointer gestures, and input modalities.