body {
  background-color: #111111;
  font: 13.34px helvetica, arial, clean, sans-serif;
}

.sound {
   position: absolute;
   width: 300px;
   height: 30px;
   top: 10%;
   left: 15%;
   margin-left: -150px;
   margin-top: -15px;
}

audio {
   width: 300px;
   height: 30px;
}