The voice-duration property indicates the strength of emphasis to be applied. Emphasis is indicated using a combination of pitch change, timing changes, loudness and other acoustic differences) that varies from one language to the next.

  • Initial valueauto
  • Applies toAll elements
  • InheritedNo
  • MediaSpeech
  • Computed valueSpecified value
  • AnimatableNo
  • CSS VersionCSS3
  • JavaScript
Formal syntax: auto | <time>

voice-duration: auto;
voice-duration: 30s;
  • <time>Specifies a value in absolute time units (seconds and milliseconds, e.g. "+3s", "250ms"). Only non-negative values are allowed.
  • autoResolves to a used value corresponding to the duration of the speech synthesis when using the inherited 'voice-rate'.
.class {
   voice-duration: 15s; 

Last updated on 23rd March 2014 By Rene Spronk

View All CSS Properties

Errors? Please help to keep this list up to date, If you find any errors, please contact us, so that we can get them fixed.