.contact-banner {
    background-image: url('bannerimg.jpg');
    background-size: cover;
    background-position: center;
    height: 300px;
    position: relative;
    text-align: center;
}
.contact-banner h1 {
    color: white;
    padding-top: 100px;
    font-size: 48px;
}
.contact-info {
    margin-top: 20px;
}
iframe {
    width: 100%;
    height: 300px;
    border: none;
}