#logo_gallery {
  position: relative;
  display: inline-block;
  width: 100%;
  height: 300px;
  overflow: hidden;
  margin-bottom: 100px;
}

@media screen and (max-width: 1500px) {
  #logo_gallery {
    max-width: 1200px;
    height: 900px;
  }
}

.logo_gallery_img {
  height: 260px;
  margin: 20px;
  filter: drop-shadow(3px 6px 9px rgb(50, 50, 50));
}

#logo_gallery span {
  display: inline-block;
  width: 100%;
  height: 150%;
  position: absolute;
  left: 0;
  margin-top: 200%;
  transition: 0.7s;
}

.visible_container {
  display: inline-block;
}