#invoice-form {
    font-family: Arial, sans-serif;
    max-width: 700px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ccc;
    background: #f9f9f9;
}
.item {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}