## Input (typing) feature Check: * normal typing, * typing into non-collapsed selection, * typing when the entire content is selected - new content should be wrapped in a paragraph. ### IME * Hiragana, * Spanish-ISO: accent (it's under `'`) + "a", * MacOS: long "a" press (accent balloon). ### Undo * undo step = 20, * additional step marks: * changing the selection, * applying inline style to collapsed selection, * any other changes. ### Misc * spell checker, * Safari: autocorrection balloon.