.banner {
    width: 100%;
    border: 0px;
    height: auto;
    z-index: 100;
}

body {
    margin: auto;

}

#main {
    height: auto;
    margin-left: auto;
    margin-right: auto;
    margin-top: -160px;
    text-align: center;
    align-content: center;
}