.slider__slide.mirror {
    text-align: right;
}

.slider__slide.mirror .main-banner__bg, .slider__slide.mirror .main-banner__img {
    right: auto;
}

@media only screen and (max-width: 767px) {
    .main-banner__img {
        width: 100%;
        transform: translateX(-100%);
    }
}