.post .post-header .author {
    vertical-align: middle
}

.thumbnail-list {
    vertical-align: middle;
    margin-right: 5px;
}

.thumbnail-list img {
    width: 36px;
    height: 36px !important;
    object-fit: cover;
    border-radius: 50%;
    margin-left: -7px;
    border: 1px solid #000;
    background-color: #FFF;
}


@media (max-width: 991px) {
    .post .post-header .author .thumbnail-list {
        display: block;
        margin-bottom: 4px;
    }
}