.atis-tab-content { display:none; margin-top:20px; }
.atis-tab-content.active { display:block; }
.atis-tab-btn { margin-right:10px; cursor:pointer; }
.atis-tab-btn.active { font-weight:bold; }
.atis-post-list article { margin-bottom:20px; }
.atis-source {
    font-style: italic;
}
input.atis-search {
    margin-bottom: 2em;
}