/* spec information about this property name= cue-before css1= NA css2= http://www.w3.org/TR/2008/REC-CSS2-20080411/aural.html#propdef-cue-before css21= http://www.w3.org/TR/2011/REC-CSS2-20110607/aural.html#propdef-cue-before css3= http://www.w3.org/TR/2012/CR-css3-speech-20120320/#cue-before other= */