var interleaveOffset = 0.5;
    var swiperOptions = {
        loop: true,
        speed: 3000,
        grabCursor: true,
        SlidesPerView: 3,
        watchSlidesProgress: true,
        mousewheelControl: true,
        keyboardControl: true,
        navigation: {
            nextEl: ".swiper-button-next",
            prevEl: ".swiper-button-prev"
        },
        autoplay: {
            delay: 3000,
        },
        fadeEffect: {
            crossFade: true
        },
        effect:'fade',

    };

    var swiper = new Swiper(".swiper-container", swiperOptions);