.maincontent {
    max-width: 100%;
    margin: 0;
    padding: 70px 0;
    background-image: linear-gradient(180deg,rgba(255,255,255,.5) 0%,rgba(255,255,255,.5) 100%),url(/imageserver/UserMedia/jandv/abstract-bg.jpg);
    background-size: cover;
}