body {
      height: 100vh;
      width: 100vw;
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 0;
      background-color: black;
    }

    #game-board {
      background-color: #CCC;
      width: 100vmin;
      height: 100vmin;
      display: grid;
      grid-template-rows: repeat(21, 1fr);
      grid-template-columns: repeat(21, 1fr);
    }

    .snake {
      background-color: hsl(200, 100%, 50%);
      border: .25vmin solid black;
    }

    .food {
      background-color: hsl(50, 100%, 50%);
      border: .25vmin solid black;
    }