.article-list .article {
    position: relative;
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    background-color: #f5f5f5;
}
.article-list .article .article-intro-image img, .article-list .article .article-featured-video img, .article-list .article .article-featured-audio img, .article-list .article .article-feature-gallery img {
    border-radius: 20px 20px 0 0;
}