.contact-form {
    margin-top: 50%;
    max-width: 600px;
    margin: 120px auto;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #fff;
}
.contact-form h2 {
    margin-bottom: 20px;
}
.contact-form .btn-primary {
    background-color: #4a00e0;
    border-color: #4a00e0;
}