play-during Property in CSS

play-during property Declares a background sound to be played while the current element is spoken.

URL value, followed by one or more of the following keywords, separated by spaces: mix repeat Alternately, one of the following keywords: auto none

Example

div { play-during:url(music.wav); }

div { play-during:url(music.wav) repeat; }

div { play-during:none; }