#melody-composer {
    max-width: 900px;
    margin: auto;
    font-family: Arial, sans-serif;
}

#staff {
    border: 1px solid #ccc;
    margin-top: 10px;
    padding: 10px;
    cursor: pointer;
}

button {
    margin: 5px;
    padding: 6px 10px;
}