* {
    margin: 0;
    padding: 0;
    font-family: Arial
}

#banner {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

    #banner img {
        width: 100%;
        margin: 0 auto;
    }

#content {
    padding: 30px;
}

#main {
    padding: 30px 0;
}

#contact {
    padding: 50px;
    text-align: center;
}