Pinboard theme …

I am using the wordpress theme Pinboard; I have updated all my versions; I cannot get <audio> to respond to my Height and Width commands. I’ve tried this way:

<audio id=”audio-player” src=”https://wcfriendschurch.com/BIG_WCFC_files/01_05_2014.wav&#8221; type =”audio/wav” width=”20%”>
Your browser does not support the HTML5 audio element
</audio>

I’ve tried this in my custom CSS
/* width of audio-player */
#audio-player {width: “20%”}