.stack {
    display: grid;
  }

  .stack>* {
    grid-row: 1;
    grid-column: 1;
  }

  .gallery-container {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  /* The overlay effect - lays on top of the container and over the image */
  .overlay {
    position: absolute;
    bottom: 0;
    background: rgb(0, 0, 0);
    background: rgba(0, 0, 0, 0.5);
    /* Black see-through */
    color: #f1f1f1;
    width: 100%;
    transition: .5s ease;
    opacity: 0;
    color: white;
    font-size: 20px;
    padding: 20px;
    text-align: center;
  }

  /* When you mouse over the container, fade in the overlay title */
  @media (hover: hover) {
    .gallery-image-container:hover .overlay{
    opacity: 1;
    }
  }

  @media (hover: none) {
    .gallery-image-container .overlay{
    opacity: 1;
    }
  }

  .gallery-image-container {
    position: relative;
  }

  .gallery-image {
    max-height: 200px;
  }