.containerApp {
    width: 100%;
    overflow: hidden;
    list-style: none;
}

.container #about_case .swiper-button-next {
    width: 42px;
    height: 68px;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: url(/cache/box/image/arrows-right-bgi.png) no-repeat center center;
}
.container #about_case .swiper-button-prev {
    width: 42px;
    height: 68px;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: url(/cache/box/image/arrows-left-bgi.png) no-repeat center center;
}