About

  <style>
    div.gallery {
        display: flex;
        flex-wrap: wrap;
    }
    div.gallery a {
        flex-grow: 1;
        object-fit: cover;
        margin: 2px;
        display: flex;
    }

    div.gallery a img {            
        height: 200px;
        object-fit: cover;
        flex-grow: 1;
    }

</style>

<div class="gallery">
    </div>