html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}

body {
  background-image: url("http://getwallpapers.com/wallpaper/full/0/1/8/398314.jpg");
  display: flex;
}

.container {
  align-content: center;
  align-items: center;
  border: 1px solid #00fff;
  display: flex;
  flex: 1 1 auto;
  justify-content: center;
  margin: 50px;
  padding: 50px;
}

#score {
  color: #FFFFFFFF;
  font-family: cursive;
  font-size: 300px;
}