.swiper {
    width: 70%;
    --swiper-theme-color: #000;
    --swiper-navigation-size: 20px;
    border: 5px solid #333
}

.swiper .img-box::before {
    padding-top: 44%;
}

@media (max-width:799px) {
    .swiper {
        width: 100%;
    }
}