.related-article-block ul {
    list-style-type: none;
    padding: 0;
}

.related-article-block li {
    background: #f8f8f8;
    padding: 8px;
    border: 1px solid #ddd;
    margin-bottom: 5px;
    border-radius: 4px;
    transition: background 0.3s;
}

.related-article-block li:hover {
    background: #efefef;
}