body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  background: #151515;
}

* {
  box-sizing: border-box;
}

.score {
  position: fixed;
  zIndex: 10;
  top: 20px;
  left: 20px;
  padding: 10px 5px 10px 15px;
  background: #fff;
  color: #000;
  border-radius: 30px;
  font-family: sans-serif;
  text-align: center;
  height: 50px;
}

#score {
  background: #000;
  border-radius: 20px;
  color: #fff;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: -5px;
}

#restart {
  position: fixed;
  zIndex: 10;
  top: 20px;
  right: 20px;
  padding: 20px 25px;
  background: #000;
  color: #fff;
  border-radius: 30px;
  font-family: sans-serif;
  text-align: center;
  border: none;
  appearance: none;
  cursor: pointer;
}