Template:MainPage/Vector/Featured article/styles.css

#featured_article.card {
    width: calc(100% / 6 * 5 - 0.4rem);
    min-width: calc(860px / 6 * 5 - 0.4rem);
    flex-direction: row;
}

#featured_article .card-image {
    width: calc(860px * 6 / 3 - 2.4rem);
    overflow: hidden;
    background-color: #f8f9fa;
}

#featured_article .card-image img {
    height: 100%;
    width: auto;
    position: relative;
    /* Edit thumbnail offset here */
    margin-left: 100%; 
}

@media (prefers-color-scheme: dark) {
    #featured_article .card-image {
        background: #2b2f36;
    }
}