.bg-img_left-first {
    background-image: url('images/left-first.jpg');
    height: 1212px;
    margin-bottom: -100px;
}
.bg-img_left-2 {
    background-image: url('images/left-2.jpg');
    height: 367px;
    background-position: 100% 0;
    margin-top: 250px;
}
.bg-img_left-3 {
    background-image: url('images/left-3.jpg');
    height: 655px;
    background-position: 100% 0;
    margin-top: 200px;
}
.bg-img_left-4 {
    background-image: url('images/left-4.jpg');
    height: 1243px;
    background-position: 100% 0;
    margin-top: 200px;
}
.bg-img_left-last {
    background-image: url('images/left-last.jpg');
    height: 815px;
    position: absolute;
    background-position: 0 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin-bottom: 0;
}
.bg-img_right-first {
    background-image: url('images/right-first.jpg');
    height: 1391px;
    background-position: 100% 0;
}
.bg-img_right-2 {
    background-image: url('images/right-2.jpg');
    height: 978px;
    background-position: 100% 0;
}
.bg-img_right-3 {
    background-image: url('images/right-3.jpg');
    height: 435px;
    background-position: 0 0;
}
.bg-img_right-4 {
    background-image: url('images/right-4.png');
    height: 682px;
    background-position: 0 0;
    margin-top: 150px;
    z-index: 2;
}
.bg-img_right-5 {
    background-image: url('images/right-5.jpg');
    height: 399px;
    background-position: 0 0;
    margin-top: -150px;
}
.bg-img_right-last {
    background-image: url('images/left-last.jpg');
    height: 815px;
    position: absolute;
    background-position: 100% 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin-bottom: 0;
}