body {
  background-color: #000;
  color: white;
  font-family: Verdana;
  text-align:center;
  z-index:-999;
}

#off {
  position: absolute;
  top: 20px;
 left: 20%;
 z-index:0;
}

#on {
  position: absolute;
  top: 20px;
 left: 20%;
 z-index:-1000;
}

#run {
  position: absolute;
  top: 20px;
 left: 20%;
 z-index:-1000;
}

#run2 {
  position: absolute;
  top: 20px;
 left: 20%;
 z-index:-1000;
}