body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
button {
    margin: 5px;
}
.modal-dialog {
    max-width: 400px;
}

select[multiple] {
    height: auto;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}