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

.container {
    margin: 0 auto;
    padding: 20px;
    width: 80%;
    max-width: 600px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

.slider-container {
    margin: 20px 0;
    font-size: 18px;
}

input[type="range"] {
    width: 100%;
    margin: 10px 0;
}

canvas {
    margin-top: 20px;
}