The voice-duration property allows the author to explicitly set the amount of time it should take a speech synthesizer to read an element’s content, for example to allow the speech to be synchronized with other media. With a value of auto (the default) the length of time it takes to read the content is determined by the content itself and the voice-rate property.
- Initial value
- CSS Speech Module
- W3C Candidate Recommendation
- CSS 2.1, Appendix A. (Aural style sheets)