body {
    background-image: url('../../files/images/bgbanner.svg');
    background-position: center bottom;
    background-repeat: no-repeat;
    background-size: cover;
    z-index: -1;
}

@media (min-width: 1200px) and (max-width: 1599px) {
    body {
        background-image: url('../../files/images/bgbanner1200.svg');
    }
}

@media (min-width: 800px) and (max-width: 1199px) {
    body {
        background-image: url('../../files/images/bgbanner800.svg');
    }
}

@media (max-width: 799px) {
    body {
        background-image: url('../../files/images/bgbanner576.svg');
    }
}

footer {
    z-index: 10;
}