body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: #222;
    color: white;
    font-family: Arial, sans-serif;
}

#game-board {
    display: grid;
    grid-template-rows: repeat(20, 1fr);
    grid-template-columns: repeat(20, 1fr);
    width: 100%;
    height: 100%;
    max-width: 400px; /* Limit max size for larger screens */
    max-height: 400px; /* Limit max size for larger screens */
    background-color: #000;
    border: 2px solid #333;
    position: relative;
}

.snake {
    background-color: limegreen;
}

.food {
    background-color: red;
    border-radius: 50%;
}