* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 0;
}

#settings {
    margin: 20px;
    text-align: center;
}

label {
    margin-right: 10px;
}

input {
    padding: 5px;
    margin-right: 10px;
    width: 60px;
    text-align: center;
}

button {
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

canvas {
    display: none;
    margin: 20px auto;
    border: 1px solid #ccc;
}