Better than tabindex is assigning semantically-sound access keys (alt+shift+some-letter-that-makes-sense-for-the-task). For example on Wikipedia (and in MediaW

Better than tabindex is assigning semantically-sound access keys (alt+shift+some-letter-that-makes-sense-for-the-task). For example on Wikipedia (and in MediaWiki in general), Alt+Shift+F is search (I guess F is for Find; S is already taken by Save anyway, for people who edit). There's a lot of them, though most of them immediately navigate you rather than focus an element - https://meta.wikimedia.org/wiki/Help:Keyboard_shortcuts https://meta.wikimedia.org/wiki/Help:Keyboard_shortcuts