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forgejo/web_src/less/markup/content.less
silverwind 57a0a7ef64
Fix opaque background on mermaid diagrams (#21642)
Browsers introduce a opaque background on iframes if the iframe
element's color-scheme does not match the document's color scheme which
in case of a dark theme results in a mismatch and the browser adds a
white background. Avoid this by specifying the same color scheme outside
and inside the iframe.

See https://fvsch.com/transparent-iframes for more info.

My initial attempt was to make the iframe document the same color-scheme
as the parent page (light or dark) but with that, there was a ugly
background flash on load in Chrome because Chrome apparently always
loads iframe in light scheme initially. Firefox still shows a background
flash on load but this is not possible to get rid of and it's certainly
a browser bug.

Before:
<img width="1147" alt="Screen Shot 2022-10-31 at 13 30 55"
src="https://user-images.githubusercontent.com/115237/199017132-9828aace-bdd0-4ede-8118-359e72bcf2fe.png">

After:
<img width="1152" alt="Screen Shot 2022-10-31 at 13 30 36"
src="https://user-images.githubusercontent.com/115237/199017137-989a9e67-3fe0-445f-a191-df5bf290dabf.png">
2022-10-31 20:57:31 +00:00

560 lines
9.3 KiB
Text

.markup {
overflow: hidden;
font-size: 16px;
line-height: 1.5 !important;
word-wrap: break-word;
&.ui.segment {
padding: 3em;
}
&.file-view {
padding: 2em !important;
}
> *:first-child {
margin-top: 0 !important;
}
> *:last-child {
margin-bottom: 0 !important;
}
a:not([href]) {
color: inherit;
text-decoration: none;
}
.absent {
color: var(--color-red);
}
.anchor {
padding-right: 4px;
margin-left: -20px;
line-height: 1;
color: inherit;
}
.anchor .svg {
vertical-align: middle;
}
.anchor:focus {
outline: none;
}
h1 .anchor .svg,
h2 .anchor .svg,
h3 .anchor .svg,
h4 .anchor .svg,
h5 .anchor .svg,
h6 .anchor .svg {
visibility: hidden;
}
h1:hover .anchor .svg,
h2:hover .anchor .svg,
h3:hover .anchor .svg,
h4:hover .anchor .svg,
h5:hover .anchor .svg,
h6:hover .anchor .svg {
visibility: visible;
}
h2 .anchor .svg,
h3 .anchor .svg,
h4 .anchor .svg {
position: relative;
top: -2px;
}
h1,
h2,
h3,
h4,
h5,
h6 {
margin-top: 24px;
margin-bottom: 16px;
font-weight: 600;
line-height: 1.25;
}
h1 tt,
h1 code,
h2 tt,
h2 code,
h3 tt,
h3 code,
h4 tt,
h4 code,
h5 tt,
h5 code,
h6 tt,
h6 code {
font-size: inherit;
}
h1 {
padding-bottom: .3em;
font-size: 2em;
border-bottom: 1px solid var(--color-secondary);
}
h2 {
padding-bottom: .3em;
font-size: 1.5em;
border-bottom: 1px solid var(--color-secondary);
}
h3 {
font-size: 1.25em;
}
h4 {
font-size: 1em;
}
h5 {
font-size: .875em;
}
h6 {
font-size: .85em;
color: var(--color-text-light-2);
}
p,
blockquote,
details,
ul,
ol,
dl,
table,
pre {
margin-top: 0;
margin-bottom: 16px;
}
hr {
height: 4px;
padding: 0;
margin: 16px 0;
background-color: var(--color-secondary);
border: 0;
}
ul,
ol {
padding-left: 2em;
}
ul.no-list,
ol.no-list {
padding: 0;
list-style-type: none;
}
.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
input[type="checkbox"] {
position: absolute;
top: .25em;
left: -1.6em;
}
p {
line-height: 1.5rem;
}
}
.task-list-item + .task-list-item {
margin-top: 3px;
}
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;
}
input[type="checkbox"]:not([disabled]):hover,
input[type="checkbox"]:not([disabled]):active {
border-color: var(--color-primary);
}
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;
}
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;
}
input[type="checkbox"]:indeterminate::after {
content: "";
mask-image: var(--checkbox-mask-indeterminate);
-webkit-mask-image: var(--checkbox-mask-indeterminate);
}
ul ul,
ul ol,
ol ol,
ol ul {
margin-top: 0;
margin-bottom: 0;
}
ol ol,
ul ol {
list-style-type: lower-roman;
}
li > p {
margin-top: 16px;
}
li + li {
margin-top: .25em;
}
dl {
padding: 0;
}
dl dt {
padding: 0;
margin-top: 16px;
font-size: 1em;
font-style: italic;
font-weight: 600;
}
dl dd {
padding: 0 16px;
margin-bottom: 16px;
}
blockquote {
margin-left: 0;
padding: 0 15px;
color: var(--color-text-light-2);
border-left: 4px solid var(--color-secondary);
}
blockquote > :first-child {
margin-top: 0;
}
blockquote > :last-child {
margin-bottom: 0;
}
table {
display: block;
width: 100%;
width: -webkit-max-content;
width: -moz-max-content;
width: max-content;
max-width: 100%;
overflow: auto;
}
table th {
font-weight: 600;
}
table th,
table td {
padding: 6px 13px !important;
border: 1px solid var(--color-secondary) !important;
}
table tr {
border-top: 1px solid var(--color-secondary);
}
table tr:nth-child(2n) {
background-color: var(--color-markup-table-row);
}
img {
max-width: 100%;
box-sizing: initial;
}
img[align="right"] {
padding-left: 20px;
}
img[align="left"] {
padding-right: 20px;
}
.emoji {
max-width: none;
vertical-align: text-top;
}
span.frame {
display: block;
overflow: hidden;
}
span.frame > span {
display: block;
float: left;
width: auto;
padding: 7px;
margin: 13px 0 0;
overflow: hidden;
border: 1px solid var(--color-secondary);
}
span.frame span img {
display: block;
float: left;
}
span.frame span span {
display: block;
padding: 5px 0 0;
clear: both;
color: var(--color-text);
}
span.align-center {
display: block;
overflow: hidden;
clear: both;
}
span.align-center > span {
display: block;
margin: 13px auto 0;
overflow: hidden;
text-align: center;
}
span.align-center span img {
margin: 0 auto;
text-align: center;
}
span.align-right {
display: block;
overflow: hidden;
clear: both;
}
span.align-right > span {
display: block;
margin: 13px 0 0;
overflow: hidden;
text-align: right;
}
span.align-right span img {
margin: 0;
text-align: right;
}
span.float-left {
display: block;
float: left;
margin-right: 13px;
overflow: hidden;
}
span.float-left span {
margin: 13px 0 0;
}
span.float-right {
display: block;
float: right;
margin-left: 13px;
overflow: hidden;
}
span.float-right > span {
display: block;
margin: 13px auto 0;
overflow: hidden;
text-align: right;
}
code,
tt {
padding: .2em .4em;
margin: 0;
font-size: 85%;
background-color: var(--color-markup-code-block);
border-radius: 4px;
}
code br,
tt br {
display: none;
}
del code {
text-decoration: inherit;
}
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;
}
.highlight {
margin-bottom: 16px;
}
.highlight pre,
pre {
padding: 16px;
font-size: 85%;
line-height: 1.45;
background-color: var(--color-markup-code-block);
border-radius: 4px;
}
.highlight pre {
margin-bottom: 0;
word-break: normal;
}
pre {
word-wrap: normal;
}
pre code,
pre tt {
display: inline;
max-width: initial;
padding: 0;
margin: 0;
overflow: initial;
line-height: inherit;
word-wrap: normal;
background-color: transparent;
border: 0;
}
pre code::before,
pre code::after,
pre tt::before,
pre tt::after {
content: normal;
}
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);
}
.ui.list .list,
ol.ui.list ol,
ul.ui.list ul {
padding-left: 2em;
}
}
.repository.wiki.revisions {
.ui.container > .ui.stackable.grid {
-ms-flex-direction: row-reverse;
flex-direction: row-reverse;
> .header {
margin-top: 0;
.sub.header {
padding-left: 52px;
word-break: break-word;
}
}
}
}
.file-revisions-btn {
display: block;
float: left;
margin-bottom: 2px !important;
padding: 11px !important;
margin-right: 10px !important;
i {
&:extend(.unselectable);
}
}
.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 {
border: 1px solid var(--color-error-border) !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: .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;
}