.swiper {
      width: 100%;
      height: 100%;
      margin-left: auto;
      margin-right: auto;
    }

    .swiper-slide {
      text-align: center;
      font-size: 18px;
      background: #fff;
      height: calc((100% - 30px) / 2) !important;

      /* Center slide text vertically */
      display: flex;
      justify-content: center;
      align-items: center;
    }

#grid-swiper .swiper-slide {
    min-height: 300px;
    background: #eee;
}