.rx-posts-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0 !important;
}

.rx-posts-list-item::before {
    content: none !important;
}

.rx-posts-list-item img {
    border: solid 5px rgba(0,0,0,0);
    transition: all .5s;
    margin-left: auto;
    margin-right: auto;
}

.rx-posts-list-item img:hover {
    border-color: #a526c4;
}