Module:ArticleButton/styles.css

.button-with-circle {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 8px;
    background-color: #121212;
    border: 1px solid #444;
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.button-with-circle:hover {
    background: #1e1e1e;
    color: #fff;
}

.circle-image img {
    width: 32px;
    height: 32px;
    background-size: cover;
    background-position: center;
    border-radius: 50%;
    margin-right: 8px;
}

.circle-image a { color: inherit; }