.contact-form {
    max-width: 500px;
    margin: 0 auto;
}
.contact-form .form-group {
    margin-bottom: 20px;
}
.contact-form label {
    display: block;
    margin-bottom: 5px;
}
.contact-form input, select, textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
.contact-form textarea {
    height: 100px;
}