#gallery {
    box-sizing: border-box;
    margin: 10px;
    padding: 0 5px;
    display: flex;
    flex-wrap: wrap;
}

#gallery * {
    box-sizing: inherit;
}

#gallery .column {
    flex: calc(100% / 4);
    max-width: calc(100% / 4);
    padding: 0 5px;
}

#gallery .column img {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
    image-orientation: from-image;
    /* margin-top: 10px; */
}

#gallery-showcase {
    position: fixed;
    padding: 10px;
    width: 100%;
    height: 100%;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0,0,0,0.75);
    display: none;
    grid-template-rows: 100%;
    grid-template-columns: auto auto auto;
    justify-content: space-between;
    z-index: 2;
}

#gallery-showcase-img {
    max-width: 100%;
    max-height: 100%;
    align-self: center;
    justify-self: center;
}

#left, #right {
    cursor: pointer;
    z-index: 1;
    color: white;
    align-self: center;
    font-size: 5em;
}

/* @media screen and (min-width: 525px) { */

/*     #gallery { */
/*         column-count: 3; */
/*     } */
/* } */

/* @media screen and (min-width: 825px) { */

/*     #gallery { */
/*         column-count: 4; */
/*     } */
/* } */

/* @media screen and (min-width: 1150px) { */

/*     #gallery { */
/*         column-count: 5; */
/*     } */
/* } */

/* @media screen and (min-width: 1450px) { */

/*     #gallery { */
/*         column-count: 6; */
/*     } */
/* } */