section.gallery > div.row {
    display:flex;
    justify-content:space-evenly;
    align-items:stretch;
}

section.gallery > div.row > div.img-container {    
    text-align: center;
    padding-bottom:1em;
}

section.gallery > div.row > div.img-container > a > img {    
    width: 200px;
    height: 150px;
    padding:0.2em;
}