Widget index / Basic controls · Download this HTML
Ready — try the example.
States and behavior
Editable, read-only (selectable), disabled, password, and invalid with a connected explanation.
Keyboard
Native selection, clipboard, Home/End and text editing keys remain available. Enter submits.
Scope and adaptation
Do not intercept typing to implement application shortcuts. Validation appears beside the field and uses browser constraint validation.
Sources
Microsoft preliminary guide (1995), chapters 7–8
Original implementation; system colors are represented by CSS variables. The default 13 px system-font stack is a readable browser adaptation. The 1995 source is preliminary, not a final product specification. Test the target browser and native host before shipping.