var swiper = new Swiper('.swiper-11', {
    navigation: {
      nextEl: '.swiper-button-next',
      prevEl: '.swiper-button-prev',
    },
    loop: true,
    autoplay: {
      delay: 3000, //Slider per _ ms
      disableOnInteraction: true,
    },
    speed: 1000, //Slide Speed
    pagination: {
      el: '.swiper-pagination',
      type: 'progressbar',
    },
    autoHeight: true,
    initialSlide: 2, //count from 0
  });

how to center swiperjs nth-child