#snakeDiv {
      width: 350px;
      height: 350px;
      background-image: url('../img/back.png');
      background-size: 350px auto;
      background-repeat: no-repeat;
      background-color: #000;
      background-position: center center;
      padding: 0;
      margin: 0 auto;

    }

    .game {
      margin: 0 auto;
    }