forgejo/web_src/css/markup/content.css

.markup {
  overflow: hidden;
  font-size: 16px;
  line-height: 1.5 !important;
  word-wrap: break-word;
}

.markup > *:first-child {
  margin-top: 0 !important;
}

.markup > *:last-child {
  margin-bottom: 0 !important;
}

.markup a:not([href]) {
  color: inherit;
  text-decoration: none;
}

.markup .absent {
  color: var(--color-red);
}

.markup .anchor {
  float: left;
  padding-right: 4px;
  margin-left: -20px;
  color: inherit;
}

.markup .anchor .svg {
  vertical-align: middle;
}

.markup .anchor:focus {
  outline: none;
}

.markup h1 .anchor {
  margin-top: -2px; /* re-align to center */
}

.markup h1 .anchor .svg,
.markup h2 .anchor .svg,
.markup h3 .anchor .svg,
.markup h4 .anchor .svg,
.markup h5 .anchor .svg,
.markup h6 .anchor .svg {
  visibility: hidden;
}

.markup h1:hover .anchor .svg,
.markup h2:hover .anchor .svg,
.markup h3:hover .anchor .svg,
.markup h4:hover .anchor .svg,
.markup h5:hover .anchor .svg,
.markup h6:hover .anchor .svg {
  visibility: visible;
}

.markup h2 .anchor .svg,
.markup h3 .anchor .svg,
.markup h4 .anchor .svg {
  position: relative;
  top: -2px;
}

.markup h1,
.markup h2,
.markup h3,
.markup h4,
.markup h5,
.markup h6 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: var(--font-weight-semibold);
  line-height: 1.25;
}

.markup h1 tt,
.markup h1 code,
.markup h2 tt,
.markup h2 code,
.markup h3 tt,
.markup h3 code,
.markup h4 tt,
.markup h4 code,
.markup h5 tt,
.markup h5 code,
.markup h6 tt,
.markup h6 code {
  font-size: inherit;
}

.markup h1 {
  padding-bottom: 0.3em;
  font-size: 2em;
  border-bottom: 1px solid var(--color-secondary);
}

.markup h2 {
  padding-bottom: 0.3em;
  font-size: 1.5em;
  border-bottom: 1px solid var(--color-secondary);
}

.markup h3 {
  font-size: 1.25em;
}

.markup h4 {
  font-size: 1em;
}

.markup h5 {
  font-size: 0.875em;
}

.markup h6 {
  font-size: 0.85em;
  color: var(--color-text-light-2);
}

.markup p,
.markup blockquote,
.markup details,
.markup ul,
.markup ol,
.markup dl,
.markup table,
.markup pre {
  margin-top: 0;
  margin-bottom: 16px;
}

.markup hr {
  height: 4px;
  padding: 0;
  margin: 16px 0;
  background-color: var(--color-secondary);
  border: 0;
}

.markup ul,
.markup ol {
  padding-left: 2em;
}

.markup ul.no-list,
.markup ol.no-list {
  padding: 0;
  list-style-type: none;
}

.markup .task-list-item {
  list-style-type: none;
  position: relative;
  line-height: 1.5rem;
  min-height: 1.5rem; /* // to render a checkbox list without content `- [ ]`, we need this min-height to make sure the <li> can be visible */
}

.markup .task-list-item input[type="checkbox"] {
  position: absolute;
  top: 0.25em;
  left: -1.6em;
}

.markup .task-list-item p {
  line-height: 1.5rem;
}

.markup .task-list-item + .task-list-item {
  margin-top: 3px;
}

.markup input[type="checkbox"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  position: relative;
  border: 1px solid var(--color-secondary);
  border-radius: 2px;
  background: var(--color-input-background);
  height: 14px;
  width: 14px;
  opacity: 1 !important; /* override fomantic on edit preview */
  pointer-events: auto !important; /* override fomantic on edit preview */
  vertical-align: middle !important; /* override fomantic on edit preview */
  -webkit-print-color-adjust: exact;
  color-adjust: exact;
}

.markup input[type="checkbox"]:not([disabled]):hover,
.markup input[type="checkbox"]:not([disabled]):active {
  border-color: var(--color-primary);
}

.markup input[type="checkbox"]::after {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  pointer-events: none;
  background: var(--color-text);
  mask-size: cover;
  -webkit-mask-size: cover;
}

.markup input[type="checkbox"]:checked::after {
  content: "";
  mask-image: var(--checkbox-mask-checked);
  -webkit-mask-image: var(--checkbox-mask-checked);
  -webkit-print-color-adjust: exact;
  color-adjust: exact;
}

.markup input[type="checkbox"]:indeterminate::after {
  content: "";
  mask-image: var(--checkbox-mask-indeterminate);
  -webkit-mask-image: var(--checkbox-mask-indeterminate);
}

.markup ul ul,
.markup ul ol,
.markup ol ol,
.markup ol ul {
  margin-top: 0;
  margin-bottom: 0;
}

.markup ol ol,
.markup ul ol {
  list-style-type: lower-roman;
}

.markup li > p {
  margin-top: 16px;
}

.markup li + li {
  margin-top: 0.25em;
}

.markup dl {
  padding: 0;
}

.markup dl dt {
  padding: 0;
  margin-top: 16px;
  font-size: 1em;
  font-style: italic;
  font-weight: var(--font-weight-semibold);
}

.markup dl dd {
  padding: 0 16px;
  margin-bottom: 16px;
}

.markup blockquote {
  margin-left: 0;
  padding: 0 15px;
  color: var(--color-text-light-2);
  border-left: 4px solid var(--color-secondary);
}

.markup blockquote > :first-child {
  margin-top: 0;
}

.markup blockquote > :last-child {
  margin-bottom: 0;
}

.markup table {
  display: block;
  width: 100%;
  width: max-content;
  max-width: 100%;
  overflow: auto;
}

.markup table th {
  font-weight: var(--font-weight-semibold);
}

.markup table th,
.markup table td {
  padding: 6px 13px !important;
  border: 1px solid var(--color-secondary) !important;
}

.markup table tr {
  border-top: 1px solid var(--color-secondary);
}

.markup table tr:nth-child(2n) {
  background-color: var(--color-markup-table-row);
}

.markup img,
.markup video {
  max-width: 100%;
  box-sizing: initial;
}

/* this background ensures images can break <hr>. We can only do this on
   cases where the background is known and not transparent. */
.markup.file-view img,
.markup.file-view video,
.comment-body .markup img, /* regular comment */
.comment-body .markup video,
.comment-content .markup img, /* code comment */
.comment-content .markup video,
.wiki .markup img,
.wiki .markup video {
  background: var(--color-box-body);
}

.markup img[align="right"],
.markup video[align="right"] {
  padding-left: 20px;
}

.markup img[align="left"],
.markup video[align="left"] {
  padding-right: 20px;
}

.markup .emoji {
  max-width: none;
  vertical-align: text-top;
}

.markup span.frame {
  display: block;
  overflow: hidden;
}

.markup span.frame > span {
  display: block;
  float: left;
  width: auto;
  padding: 7px;
  margin: 13px 0 0;
  overflow: hidden;
  border: 1px solid var(--color-secondary);
}

.markup span.frame span img,
.markup span.frame span video {
  display: block;
  float: left;
}

.markup span.frame span span {
  display: block;
  padding: 5px 0 0;
  clear: both;
  color: var(--color-text);
}

.markup span.align-center {
  display: block;
  overflow: hidden;
  clear: both;
}

.markup span.align-center > span {
  display: block;
  margin: 13px auto 0;
  overflow: hidden;
  text-align: center;
}

.markup span.align-center span img
.markup span.align-center span video {
  margin: 0 auto;
  text-align: center;
}

.markup span.align-right {
  display: block;
  overflow: hidden;
  clear: both;
}

.markup span.align-right > span {
  display: block;
  margin: 13px 0 0;
  overflow: hidden;
  text-align: right;
}

.markup span.align-right span img,
.markup span.align-right span video {
  margin: 0;
  text-align: right;
}

.markup span.float-left {
  display: block;
  float: left;
  margin-right: 13px;
  overflow: hidden;
}

.markup span.float-left span {
  margin: 13px 0 0;
}

.markup span.float-right {
  display: block;
  float: right;
  margin-left: 13px;
  overflow: hidden;
}

.markup span.float-right > span {
  display: block;
  margin: 13px auto 0;
  overflow: hidden;
  text-align: right;
}

.markup code,
.markup tt {
  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  white-space: break-spaces;
  background-color: var(--color-markup-code-block);
  border-radius: 4px;
}

.markup code br,
.markup tt br {
  display: none;
}

.markup del code {
  text-decoration: inherit;
}

.markup pre > code {
  padding: 0;
  margin: 0;
  font-size: 100%;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-wrap: break-word;
  background: transparent;
  border: 0;
}

.markup .highlight {
  margin-bottom: 16px;
}

.markup .highlight pre,
.markup pre {
  padding: 16px;
  font-size: 85%;
  line-height: 1.45;
  background-color: var(--color-markup-code-block);
  border-radius: 4px;
}

.markup .highlight pre {
  margin-bottom: 0;
  word-break: normal;
}

.markup pre {
  word-wrap: normal;
}

.markup pre code,
.markup pre tt {
  display: inline;
  max-width: initial;
  padding: 0;
  margin: 0;
  overflow: initial;
  line-height: inherit;
  word-wrap: normal;
  background-color: transparent;
  border: 0;
}

.markup pre code::before,
.markup pre code::after,
.markup pre tt::before,
.markup pre tt::after {
  content: normal;
}

.markup kbd {
  display: inline-block;
  padding: 3px 5px;
  font-size: 11px;
  line-height: 10px;
  color: var(--color-text-light);
  vertical-align: middle;
  background-color: var(--color-markup-code-block);
  border: 1px solid var(--color-secondary);
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 var(--color-secondary);
}

.markup .ui.list .list,
.markup ol.ui.list ol,
.markup ul.ui.list ul {
  padding-left: 2em;
}

.file-revisions-btn {
  display: block;
  float: left;
  margin-bottom: 2px !important;
  padding: 11px !important;
  margin-right: 10px !important;
}

.file-revisions-btn i {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

.markup-render {
  display: block;
  border: none;
  width: 100%;
  height: var(--height-loading); /* actual height is set in JS after loading */
  overflow: hidden;
  color-scheme: normal; /* match the value inside the iframe to allow it to become transparent */
}

.markup-block-error {
  display: block !important; /* override fomantic .ui.form .error.message {display: none} */
  border: none !important;
  margin-bottom: 0 !important;
  border-bottom-left-radius: 0 !important;
  border-bottom-right-radius: 0 !important;
  box-shadow: none !important;
  font-size: 85% !important;
  white-space: pre-wrap !important;
  padding: 0.5rem 1rem !important;
  text-align: left !important;
}

.markup-block-error + pre {
  border-top: none !important;
  margin-top: 0 !important;
  border-top-left-radius: 0 !important;
  border-top-right-radius: 0 !important;
}