.react-blueimp-thumbnails > a > img {
    height: 100%;
    vertical-align: middle;
    text-align: center;
}

.react-blueimp-thumbnails {
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.react-blueimp-thumbnails > a {
    border: 1px solid #aaa;
    border-radius: 5px;
    margin: 5px;
    height: 100px;
    width: 100px;
    overflow: hidden;
}

.emoji-thumbnails {
    font-size: 50px;
    line-height: 0px;
    text-align: center;
}