.article-title {
    font-size: 25px;
    color: #333;
    text-align: left;
    border-bottom: 1px solid #f0efef;
    padding-bottom: 30px;
    margin-bottom: 30px;
    font-weight: bold;
}

.article-content .article-sub-title {
    line-height: 1.8;
    font-size: 16px;
    color: #999;
    text-indent: 2em;
}

.article-content .article-sub-title,
.article-content .article-description,
.article-content .article-text {
    margin-bottom: 1.6em;
}

.article-content .article-sub-title,
.article-content .article-description,
.article-content .article-text {
    line-height: 1.8;
    font-size: 14px;
    color: #999;
    text-indent: 2em;
}

.article-img {
    display: block;
    margin: 20px auto;
}