.secondary-images {
    display: flex;
    margin: 1em 0 1em -1em;
    list-style: none;
}

.secondary-images li {
    display: flex;
    margin-left: 1em;
    align-items: center;
    border: 1px solid #ddd;
}

.secondary-images li:hover:after {
    box-shadow: 0 0 50px rgba(0, 0, 0, 0) inset, 0 0 10px rgba(0, 0, 0, .1);
}

.no-js .secondary-images {
    clear: left;
    overflow: hidden;
}

.no-js .secondary-images li {
    float: left;
    width: calc(50% - 10px);
    margin: 0 0 20px;
}

.secondary-images img {
    display: block;
    width: 100%;
}