body {
    width: 100%;
    height: 100%;
    text-align: center;
    display: table;
}
.cover {
    display: table-cell;
    vertical-align: middle;
    background-image: url("http://cdn.veturis.com/agencias/imagenes/front-end/veturis_logo.png");
    background-position: 50% 10%;
    background-repeat: no-repeat;
}
.dgg_wrapper {
    background-repeat: repeat-x;
    background-position: 50% 50%; 
}