body {
    
}
.BackPics {
    background-image: url(../images/background-img.jpg);
    height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
.BackPicsAD {
    background-image: url(../images/7919.jpg);
    background-size: cover;
    height: auto;
    background-position-y: bottom;
    background-position-x: right;
}