<script>
a=document.getElementsByClassName('trigger_text');
console.log(a[0]);
a[0].addEventListener('click',bangs);
function bangs() {
var audio = new Audio();
audio.src = 'https://www.dropbox.com/s/qeo0juaz47tos87/nothing.mp3?dl=1';
audio.autoplay = true;
}
</script>