.responsive-gallery .grid-container li  a {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2em;
  overflow: hidden;

  padding: 1px;
  /* border-radius: 5px; */
  transition: all 0.25s ease-in-out;
}

.responsive-gallery .grid-container li a::after {
  content: "";
  background: linear-gradient(transparent,black);
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  transform: translateY(100%);
  transition-duration: .75s;
}

.responsive-gallery .grid-container li a:hover::after {
  transform: translateY(50%);
}

.responsive-gallery .grid-container li a  img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition-duration: 1s;
}

.responsive-gallery .grid-container li a  {
  width: 100%;
  height: 100%;
}

.responsive-gallery  .grid-container li a:hover > img {
  transform: scale(1.05);
}

.responsive-gallery  .grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  grid-auto-rows: 300px;
  grid-auto-flow: dense;
  min-height: 100vh;

}

/* .horizontal {
  grid-column: span 2;
}  */

.responsive-gallery .grid-container .long {
  grid-row: span 2;
}

 /* .big {
  grid-column: span 2;
  grid-row: span 2;
}  */


@media only screen and (max-width: 480px) {
  .responsive-gallery{
         padding: 0.25rem;
  }

  .responsive-gallery li{
    padding: 0.25rem;
}
}




@media only screen and (min-width: 1600px) {
  
.responsive-gallery  .grid-container {
  display: grid;
  grid-template-columns: repeat(4, minmax(20rem, 1fr));
  grid-auto-rows: 300px;
  grid-auto-flow: dense;
  min-height: 100vh;

}

}