.gallery_grid_thumb {
  margin-bottom: 30px;
  line-height: 0;
}
.addonnest-photo-gallery {
  .popup-image {
    display: inline-flex;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 270px;

    &:before {
      content: '';
      width: 100%;
      height: 100%;
      position: absolute;
      z-index: 9;
      left: 0;
      top: 0;
      transition: 0.4s;
    }

    img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
  }
}