.game-canvas {
    border: 1px solid #333;
    background-color: black;
    display: block;
    margin: 0 auto;
}

.score-display {
    margin: 10px 0;
    font-size: 18px;
    color: #333;
    text-align: center;
}

.score-display p {
    margin: 5px 0;
}

#score, #high-score {
    font-weight: bold;
    color: #4CAF50;
}