const swiper = new Swiper('.swiper-container', {
  pagination: {
    el: '.slider__pagination',
    clickable: true,
    bulletClass: 'slider__pagination-bullet',
    bulletActiveClass: 'slider__pagination-bullet_active'
  },
  navigation: {
    lockClass: 'slider__btn_locked',
    nextEl: '.slider__btn-next',
    prevEl: '.slider__btn-prev'
  },
});