.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 300px;
    grid-auto-flow: dense;
    grid-gap: 3vmin;
    gap: 3vmin;
    margin: 0;
    padding: 0;
}

.gallery > li {
    list-style-type: none;
}

@media (max-width: 764px) {
    .gallery{
        grid-template-columns: 1fr;
        grid-auto-rows: min-content;
    }
}

.gallery__item {
    grid-row: span 1;
    grid-column: span 1;
}

.gallery__item--tall {
    grid-row: span 2;
    grid-column: span 1;
}

.gallery__item--wide {
    grid-row: span 1;
    grid-column: span 2;
}

@media (max-width: 764px) {
    .gallery__item {
        grid-column: span 1;
        grid-row: span 1;
    }
}

.gallery__item a {
    display: inline-block;
    width: 100%;
    height: 100%;
}

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

.gallery__item img:hover {
    object-fit: contain;
}

@media (max-width: 764px) {
    .gallery__item img {
        height: auto;
    }
}