#controls {
  position: absolute;
  top: 10px;
  left: 100px;
  background: white;
  padding: 10px;
  z-index: 1000;
  width: 240px;
  font-size: 24px;
}

#controls select,
#controls button {
  display: block;
  margin-bottom: 5px;
  width: 240px;
  height: 40px;
  font-size: 18px;
}