.gallery{
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 10px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    max-width: calc(100% / 2 - 10px);
}

.gallery-item::before{
    content:"";
    display: block;
    padding-top: 100%;
}

@media only screen and (min-width: 768px) {
    .gallery-item {
        max-width: calc(100% / 3 - 10px);
    }
}

.gallery-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    outline: blue;
}

.gallery-icon a{
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#gallery-1 img {
    border: none !important;
}