.block-vocabulary {
    display: flex;
}

#toc-control-open,
#toc-control-close {
    color: #191212;
}

.toc-container .toc-inner-h1 {
    font-weight: bold;
}

.toc-container .toc-inner-h2 {
    font-weight: bold;
}

.toc-container div {
    line-height: 18px;
}

.toc-container p {
    line-height: 18px;
}

#wrap-top-toc {
    font-weight: bold;
}

.wiki-header-search {
    margin: 15px 0;
    display: flex;
    justify-content: center;
}

#wikicat {
    background: #F2F9FF;
    border: 1px solid #C6E5FF;
    border-radius: 5px;
    font-size: 16px;
    height: 44px;
    padding: 6px;
}

#wikicat option {
    padding: 15px 10px;
    display: block;
    height: 40px;
    text-align: center;
}

#wikisearch {
    height: 44px;
    box-sizing: border-box;
    font-size: 16px;
    width: 280px;
}

#wiki-submit {
    height: 40px;
    padding: 5px 20px;
    color: white;
    border: none;
    box-sizing: border-box;
    background-color: #1270E3;
    margin-left: 5px;
}

.single-download-bottom {
    text-decoration: none;
    display: block;
    background: rgba(57, 156, 242, 0.99);
    color: #fff;
    text-align: center;
    margin: 10px 0;
    border-radius: 4px;
    padding: 6px 0;
    font-size: 18px;
}

.single-download-btn {
    display: block;
    color: white;
    background: rgba(57, 156, 242, 0.99);
    padding: 5px;
    box-sizing: border-box;
    font-size: 14px;
    border-radius: 5px;
    width: 100px;
    margin: 10px auto;
    text-align: center;
}

.download-box {
    display: block;
    font-size: 14px;
    background: rgba(57, 156, 242, 0.99);
    border-radius: 5px;
    width: 100px;
    margin: 10px auto;
    color: white;
    box-sizing: border-box;
    position: relative;
}

.Choose-fast .download-box {
    float: left;
    margin: 0 0 0 10px;
}

.Choose-fast .single-download-btn {
    float: left;
    margin: 0 0 0 10px;
}

.download-box .download-control {
    text-align: center;
    font-size: 14px;
    padding: 5px;
    margin: 0;
    box-sizing: border-box;
}

.download-btn {
    display: block;
    color: white;
    background: rgba(57, 156, 242, 0.99);
    width: 180px;
    padding: 8px;
    box-sizing: border-box;
    font-size: 14px;
}

.download-btn-popup {
    position: absolute;
    top: 34px;
    left: 0;
    z-index: 9999;
    display: none;
}

.download-btn-popup-open {
    display: block;
}

.download-btn-popup-open .download-btn {
    background: #C3E0FA;
    color: #000000;
}

.download-btn-popup-open .download-btn i {
    color: #3B9DF2;
}

.download-box-bottom {
    display: flex;
    justify-content: space-around;
    margin: 10px 0;
}

.download-box-bottom .download-btn {
    text-align: center;
    background: none;
    font-weight: bold;
    color: #000000;
    font-size: 16px;
    width: auto;
}

.download-box-bottom .download-btn i {
    color: red;
}

.accordion-wiki {
    margin: 8px 0;
    background-color: #C6E5FF;
    border-radius: 5px;
}

.accordion-wiki-head {
    background: #D7EBFF;
    border-radius: 5px;
    text-align: center;
    padding: 6px;
    font-weight: bold;
    color: #272313;
    position: relative;
}

.accordion-wiki-head i {
    position: absolute;
    right: 20px;
    top: 10px;
}

.accordion-wiki-body {
    display: block;
    padding: 8px;
    background: #C6E5FF;
}

.accordion-display {
    display: none;
}

.wiki-note {
    margin: 8px 0;
    padding: 8px;
    background-color: #F4F2EC;
    border-left: 3px solid #578DDE;
    font-style: italic;
}

#box-content img {
    max-width: 100%;
}

#box-content ul {
    margin-bottom: 10px;
}

#box-content ul li {
    margin-bottom: 10px;
}

.article-wiki .left-3col {
    width: 720px;
}

.explanation-title2 {
    cursor: pointer;
}

.Choose-fast > ul > li {
    margin-bottom: 10px !important;
}

.Choose-fast li ul {
    margin-bottom: 0 !important;
}

.Choose-fast li {
    margin-bottom: 0 !important;
}

li.sub-article-group.active {
    background: linear-gradient(315deg, #1270E3 0%, #59C2FF 100%) !important;
}

li.no-sub-article-group.active a {
    background: linear-gradient(315deg, #1270E3 0%, #59C2FF 100%) !important;
}

.Choose-fast ul li a {
    padding: 6px 8px;
}

#feedback_content {
    font-family: OpenSans, Tahoma, Helvetica, 'sans-serif';
}

.gop-y-nhieu-cach {
    /*display: none;*/
}

.ad_separator {
    display: block;
    margin: 15px 0 -10px 0;
    text-align: center;
    position: relative;
    border-top: 1px solid #e2e2e2;
    color: #a7a7a7;
    text-transform: uppercase;
    font-size: 12px;
}

.ad_separator span {
    background: #fff;
    display: inline-block;
    padding: 0 3px;
    position: relative;
    top: -14px;
    font-size: 12px;
}

@media (max-width: 900px) {
    .box_center .last {
        float: none !important;
        clear: both !important;
        width: 400px;
        max-width: 100vw;
        margin-top: 30px !important;
        margin-bottom: 30px !important;
        background: #ffffff;
    }

    .detail-page .left.left-3col {
        width: calc(100% - 80px) !important;
    }

    #event_tree_container {
        display: none;
    }

    .box_center {
        margin-left: 10px !important;
    }

    .box-question {
        width: 100% !important;
    }
}

.quizlet-alert {
    display: none;
}

@media screen and (max-width: 1600px) {
    .quizlet-alert {
        display: block;
    }
}

.match_content {
    width: 585px;
    height: 200px;
}