.about-post-author-tabs ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    border-bottom: 1px solid #ddd;
}

.about-post-author-tabs ul li {
    margin-right: 10px;
}

.about-post-author-tabs ul li a {
    display: block;
    padding: 10px;
    text-decoration: none;
    border-radius: 5px 5px 0 0;
    background: #f1f1f1;
    color: #555;
}

.about-post-author-tabs ul li.active a {
    background: #fff;
    border-bottom: 1px solid #fff;
    color: #000;
}

.about-post-author-tab-content {
    padding: 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-top: none;
    margin-top: -1px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

#about-post-author-preview-box {
    border: 1px solid #ddd;
    padding: 20px;
    background: #f9f9f9;
}