text: class CarouselStandard extends CarouselAbstract {
      constructor () {
          super('.swipper-carousel-wrap:not(.swipper-carousel-slideshow)');
      }
  
      showSlide (slideElement) {
          super.showSlide(slideElement);
  
          const aElement = slideElement.querySelector('a');
          if (!aElement) {
              slideElement.setAttribute('tabindex', '0');
          }
      }
  
      hideSlide (slideElement) {
          super.hideSlide(slideElement);
  
          const aElement = slideElement.querySelector('a');
          if (!aElement) {
              slideElement.removeAttribute('tabindex');
          }
      }
  }
  
  // Singleton
  new CarouselStandard();
  