body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    text-align: center;
    max-width: 900px;
    width: 100%;
}

h1 {
    font-size: 24px;
    color: #333;
}

canvas {
    width: 100%;
    max-width: 800px;
    height: auto;
}