html,
body {
  padding: 0;
  margin: 0;
  overflow: hidden;
  font-family: monospace;
  background:#aaa;
}

#score {
  position: absolute;
  position: absolute;
  color: #aaa;
  top: 0;
  right: 10px;
  font-size: 1.1vw;
  color: #000;
}