body {
    background-color: #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    font-family: 'Arial', sans-serif;
}

h1 {
    color: #333;
}

canvas {
    background: #eee;
    display: block;
    border: 2px solid #333;
    border-radius: 5px;
}