h3 {
    font-size: 16px;
    margin: 50px 0px 12px 0px;
}






table.equal-columns {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed; /* equal column width */
    margin: 20px 0;
}

table.equal-columns th {
    background-color: #e8e8e8;
}

table.equal-columns th,
table.equal-columns td {
    padding: 4px;
    text-align: center;
    border-left: 1px solid #e8e8e8;
}

table.equal-columns tr:nth-child(n+3) {
    border-top: 1px solid #e8e8e8;
}

table.equal-columns td:first-child,
table.equal-columns th:first-child {
    border-left: none;
}






img.single-image {
    width: 100%;
    display: block;
    margin: 20px 0px 20px 0px;
}






div.two-images-in-a-row,
div.three-images-in-a-row,
div.four-images-in-a-row {
    width: 100%;
    margin: 20px 0px 20px 0px;
    overflow: auto;
}

div.two-images-in-a-row > div,
div.three-images-in-a-row > div,
div.four-images-in-a-row > div {
    margin-top: 0px;
    width: 100%;
    overflow: auto;
}

div.two-images-in-a-row > div:nth-child(n+2),
div.three-images-in-a-row > div:nth-child(n+2),
div.four-images-in-a-row > div:nth-child(n+2) {
    margin-top: 4px;
}

div.two-images-in-a-row > div > * {
    float: left;
    width: 49.79591836734694%;
}

div.three-images-in-a-row > div > * {
    float: left;
    width: 33.06122448979592%;
}

div.four-images-in-a-row > div > * {
    float: left;
    width: 24.69387755102041%;
}

div.two-images-in-a-row > div > *:nth-child(n+2),
div.three-images-in-a-row > div > *:nth-child(n+2),
div.four-images-in-a-row > div > *:nth-child(n+2) {
    margin-left: 0.4081632653061224%;
}






div.info-box {
    background-color: #ebf7ff;
    padding: 25px;
    margin: 10px 0px 20px 0px;
    line-height: 20px;
}

div.info-box > a {
    font-weight: normal;
}





.bottom-text-container {
    position: relative;
    line-height: 0px;
    overflow: hidden;
}

.bottom-text-container .image {
    width: 100%;
}

.bottom-text-container .text {
    position: absolute;
    bottom: 0px;
    left: 0px;
    width: calc(100% - 8px);
    padding: 4px 4px 4px 4px;
    background: rgba(60, 60, 60, 0.5);
    color: white;
    font-size: 10px;
}





div.centered-header {
    text-align: center;
    font-size: 14px;
    font-weight: bold;
    margin: 40px 0px 15px 0px;
    overflow: hidden;
}






/* article */

.article {
    text-align: justify;
    overflow: hidden;
    line-height: 1.35em;
}

.article img.main {
    width: 100%;
    display: block;
    margin-bottom: 15px;
}

.article img.additional {
    width: 100%;
    display: block;
    margin: 20px 0;
}

.article a.source {
    display: block;
    color: #777;
    float: right;
    margin-top: 20px;
}

.article div.video {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    margin: 20px 0;
}

.article div.video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.article .info {
    border-left: 6px solid #c5c5c5;
    padding-left: 8px;
    overflow: auto;
    line-height: inherit;
}





/* article table of contents */

.article-table-of-contents {
    position: relative;
    width: 100%;
    background-color: #f5f5f5;
    border-radius: 4px;
    padding: 8px;
}

.article-table-of-contents .row {
    height: 18px;
    white-space: nowrap;
}

.article-table-of-contents .row .pointer {
    float: left;
    width: 18px;
    height: 18px;
    text-align: center;
    margin-right: 2px;
    line-height: 18px;
}

.article-table-of-contents .row .pointer > div {
    width: 12px;
    height: 12px;
    margin-top: 2px;
    background: url(../images/ui/arrow_triangle.svg) center center / 12px 12px no-repeat;
}

.article-table-of-contents .row .number {
    display: inline-block;
    width: 18px;
    margin-right: 4px;
    text-align: right;
}

.article-table-of-contents .row a.link {
    float: left;
    width: calc(100% - 140px);
    line-height: 18px;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.article-table-of-contents .row a.link:hover {
    text-decoration: underline;
}

.article-table-of-contents .row a.selected {
    font-weight: 500;
}

.article-table-of-contents .buttons {
    position: absolute;
    overflow: hidden;
    right: 24px;
    top: 8px;
}

.article-table-of-contents .buttons a.button:nth-child(n+2) {
    margin-left: 4px;
}