1. csscounterstylerule api: speakas

  2. speechsynthesis api: speak

  3. speechsynthesis api: speaking

  4. css at-rule: `@counter-style`: speak-as

  5. css property: speak

  6. css property: speak-as

  7. css property: speak-as: digits

  8. css property: speak-as: literal-punctuation

  9. css property: speak-as: no-punctuation

  10. css property: speak-as: normal

  11. css property: speak-as: spell-out

  12. html element: iframe: allow: speaker-selection