body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
    background-color: #f4f4f4;
}

header {
    background: #007BFF;
    color: white;
    padding: 10px 0;
}

nav {
    margin: 20px 0;
}

nav a {
    margin: 0 10px;
    text-decoration: none;
    color: #007BFF;
}

canvas {
    border: 1px solid #007BFF;
}

#score {
    font-size: 20px;
}