html {
  height: 100%;
  width: 100%;
}

.game {
  display: flex;
  justify-content: center; 
  border-bottom: 1px solid black;
}

.game-title {
  margin: 10px auto;
  margin-right: 30px;
  font-weight: bold;
}

.game-describe {
  margin: 10px auto;
}