Property Reference - CSS Reference - page 291

Name
cue
Values:
<'cue-before'> || <'cue-after'>
Initial value:
Not defined for shorthand properties
Applies to:
All elements
Inherited:
No
Percentages:
Apply to the inherited value for voice-volume
Computed value:
See individual properties ( cue-before , etc.)
Description:
A shorthand property that defines audio cues that precede and follow the audio rendering of
an element's content. A cue is something like an auditory icon.
Examples:
table.layout {
cue: url(shattered-glass.ogg) url(sad-trombone.wav);}
pre {cue: url(raygun.mp3);}