body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    padding: 20px;
    margin: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
    margin-top: 0;
}

.controls {
    margin-bottom: 20px;
}

label {
    margin-right: 10px;
}

button {
    background-color: #007BFF;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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