.site_width {
max-width:1800px;
width:100%;
}

.maincontent {
position:relative;
padding:50px 0px;
background-image: linear-gradient(180deg,rgba(255,255,255,25) 0%,rgba(255,255,255,.25) 100%),url(/imageserver/UserMedia/schabel/abstract-bg.jpg);
background-size:cover;
background-position:center;
background-repeat:no-repeat;
}