.swiper {
  width: 100%;
}
.swiper-slide {
  background-position: center;
  background-size: cover;
}

.swiper-slide img {
  display: block;
  width: 100%;
}
.swiper-wrapper{
    height: auto !important;
}

.swiper.hor_sponsor{
    transition: opacity 0.3s ease-in-out;
}
.swiper.hor_sponsor img{
    width: 100%; 
    height: auto; 
    max-width: 100%;
}