:root {
    --swiper-width-1: 800px;
    --swiper-height-1: 450px;
}

#mySwiperContainer_1 {
    width: var(--swiper-width-1);
    height: var(--swiper-height-1);
    position: relative;
    margin: 0 auto 60px auto;
    text-align: center;
}

@media (max-width: 1000px) {
    #mySwiperContainer_1 {
        width: 100%;
    }
}