apoca1ipsis

div[style*="border: 2px solid rgba(26, 115, 232)"] {
border: none!important;
}

const swiper = new Swiper('#swiper', {
    effect: 'coverflow',
    loop: false,
    centeredSlides: true,
    slidesPerView: 3.4,
    spaceBetween: 0,
    coverflowEffect: {
                rotate: 0,
                stretch: 0,
                depth: 275,
                modifier: 1,
                slideShadows : false,
            }      
    }
});

<div class="parent">
    <div class="slider"></div>
    <div class="content"></div>
</div>

.parent {
  position: relative;
}
.slider {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.content {
  position: relative;
  z-index: 2;
}