#game {
  margin: 10px auto 0;
  display: block;
  border: 3px solid #555;
  border-radius: 3px;
}
#touchControls {
  text-align: center;
  display: none;
}
#touchControls div {
  margin-top: 10px;
  display: inline-flex;
  justify-content: center;
  align-content: center;
  flex-direction: column;
  border-width: 1px;
  border-color: black;
  border-style: solid;
  background-color: lightgray;
  width: 45%;
  height: 100px;
}
#touchControls #touchUp,
#touchControls #touchDown,
#touchControls #touchEnter {
  width: 100%;
}