.opt {
    position: relative;
    display: block;
    margin: 0 auto 48px auto;
}
.opt .button {
    margin-top: 64px;
}


.home-slider {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 40px;
}
.home-slider__slide {
    position: relative;
    background-color: whitesmoke;
}

.home-slider__slide .banner__pc     {display: block;
    background: url('/media/slides/banneroptpc/image-id-1.jpeg');
    background-size: contain;}
.home-slider__slide .banner__mobile {display: none;
    background: url('/media/slides/banneroptmobile/image-id-1.jpeg');
    background-size: contain;}

@media(max-width: 640px) {
    .home-slider__slide {
        position: relative;
        padding-top: calc(100% * 2);
        background-color: whitesmoke;
    }
    .home-slider__slide .banner__pc     {display: none;}
    .home-slider__slide .banner__mobile {display: block;}

}


.home-slider__slide img {
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    top: 0;
}