.background-fall .background .left {
    background-image: url('/img/background/fall/left.png');
    background-position: left bottom;
    background-repeat: no-repeat;
    width: 100vw;
    height: 100vh;
    left: 0;
    position: fixed !important;
    z-index: 2;
}
.background-fall .background .right {
    background-image: url('/img/background/fall/right.png');
    background-position: right bottom;
    background-repeat: no-repeat;
    width: 100vw;
    height: 100vh;
    right: 0;
    position: fixed !important;
    z-index: 1;
}