html,
body {
  margin: 0;
  padding: 0;

  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;

  background-color: #222;
}

#game-container {
  position: relative;
}

canvas {
  display: block;
  border-radius: 20px;
}

#history {
  color: #fff;
  position: absolute;
  display: block;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: right;
  font-size: 16px;
  font-weight: bold;
  z-index: 1000;
  padding: 10px;
  opacity: 0.8;

  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}