#registration-form {
    max-width: 400px;
    margin: 0 auto;
}
#registration-form div {
    margin-bottom: 15px;
}
#registration-form label {
    display: block;
    font-weight: bold;
}
#registration-form input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
#registration-form button {
    padding: 10px 15px;
    background-color: #0073aa;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
#registration-form button:hover {
    background-color: #005177;
}
#form-message {
    margin-top: 15px;
    font-weight: bold;
}