#outer {
  position: static;
}

#audio {
  position: absolute;
  top: 97.5%;
  left: 15%;
  margin-right: -85%;
  transform: translate(-15%, -97.5%);
  display: flex;
  z-index: 1;
}

#link {
  position: absolute;
  top: 98%;
  left: 85%;
  margin-right: -15%;
  transform: translate(-85%, -98%);
  display: flex;
}