.article-title {
    font-size: 21px;
    font-weight: bold;
    text-align: center;
}

.article-sub {
    position: relative;
    font-size: 16px;
    color: #808080;
    margin-bottom: 30px;
    text-align: center;
}

.article-content {
    width: 80%;
    margin: auto;
}

.download-title {
    font-size: 19px;
    font-weight: bold;
    color: #4d835f;
    margin-top: 30px;
}

.download-content {
    font-size: 18px;
    padding-left: 18px;
}

.download-content a {
    color: #808080;
}

.download-content a:hover {
    color: #3be7e4;
}