body{
  overflow: hidden;
  margin: 0;
  background-color: black;
}

#player {
  /*display: none;*/
  position: absolute;
  bottom: 0;
  margin: 10px;
  border: 1px solid #080;
  border-radius: 20px;
  opacity: 0.2;
}
#player:hover{
  opacity: 1;
}