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|
# cgit — CSS Theming
## Overview
cgit ships with a comprehensive CSS stylesheet (`cgit.css`) that controls
the visual appearance of all pages. The stylesheet is designed with a light
color scheme and semantic CSS classes that map directly to cgit's HTML
structure.
Source file: `cgit.css` (~450 lines).
## Loading Stylesheets
CSS files are specified via the `css` configuration directive:
```ini
css=/cgit/cgit.css
```
Multiple stylesheets can be loaded by repeating the directive:
```ini
css=/cgit/cgit.css
css=/cgit/custom.css
```
Stylesheets are included in document order in the `<head>` section via
`cgit_print_docstart()` in `ui-shared.c`.
## Page Structure
The HTML layout uses this basic structure:
```html
<body>
<div id='cgit'>
<table id='header'>...</table> <!-- site header with logo -->
<table id='navigation'>...</table> <!-- tab navigation -->
<div id='content'> <!-- page content -->
<!-- page-specific content -->
</div>
<div class='footer'>...</div> <!-- footer -->
</div>
</body>
```
## Base Styles
### Body and Layout
```css
body {
font-family: sans-serif;
font-size: 11px;
color: #000;
background: white;
padding: 4px;
}
div#cgit {
padding: 0;
margin: 0;
font-family: monospace;
font-size: 12px;
}
```
### Header
```css
table#header {
width: 100%;
margin-bottom: 1em;
}
table#header td.logo {
/* logo cell */
}
table#header td.main {
font-size: 250%;
font-weight: bold;
vertical-align: bottom;
padding-left: 10px;
}
table#header td.sub {
color: #999;
font-size: 75%;
vertical-align: top;
padding-left: 10px;
}
```
### Navigation Tabs
```css
table#navigation {
width: 100%;
}
table#navigation a {
padding: 2px 6px;
color: #000;
text-decoration: none;
}
table#navigation a:hover {
color: #00f;
}
```
## Content Areas
### Repository List
```css
table.list {
border-collapse: collapse;
border: solid 1px #aaa;
width: 100%;
}
table.list th {
text-align: left;
font-weight: bold;
background: #ddd;
border-bottom: solid 1px #aaa;
padding: 2px 4px;
}
table.list td {
padding: 2px 4px;
border: none;
}
table.list tr:hover {
background: #eee;
}
table.list td a {
color: #00f;
text-decoration: none;
}
table.list td a:hover {
text-decoration: underline;
}
```
### Sections
```css
div.section-header {
background: #eee;
border: solid 1px #ddd;
padding: 2px 4px;
font-weight: bold;
margin-top: 1em;
}
```
## Diff Styles
### Diffstat
```css
table.diffstat {
border-collapse: collapse;
border: solid 1px #aaa;
}
table.diffstat td {
padding: 1px 4px;
border: none;
}
table.diffstat td.mode {
font-weight: bold;
/* status indicator: A/M/D/R */
}
table.diffstat td.graph {
width: 500px;
}
table.diffstat td.graph span.add {
background: #5f5;
/* green bar for additions */
}
table.diffstat td.graph span.rem {
background: #f55;
/* red bar for deletions */
}
table.diffstat .total {
font-weight: bold;
text-align: center;
}
```
### Unified Diff
```css
table.diff {
width: 100%;
}
table.diff td div.head {
font-weight: bold;
margin-top: 1em;
color: #000;
}
table.diff td div.hunk {
color: #009;
/* hunk header @@ ... @@ */
}
table.diff td div.add {
color: green;
background: #dfd;
}
table.diff td div.del {
color: red;
background: #fdd;
}
```
### Side-by-Side Diff
```css
table.ssdiff {
width: 100%;
}
table.ssdiff td {
font-family: monospace;
font-size: 12px;
padding: 1px 4px;
vertical-align: top;
}
table.ssdiff td.lineno {
text-align: right;
width: 3em;
background: #eee;
color: #999;
}
table.ssdiff td.add {
background: #dfd;
}
table.ssdiff td.del {
background: #fdd;
}
table.ssdiff td.changed {
background: #ffc;
}
table.ssdiff span.add {
background: #afa;
font-weight: bold;
}
table.ssdiff span.del {
background: #faa;
font-weight: bold;
}
```
## Blob/Tree View
```css
table.blob {
border-collapse: collapse;
width: 100%;
}
table.blob td {
font-family: monospace;
font-size: 12px;
padding: 0 4px;
vertical-align: top;
}
table.blob td.linenumbers {
text-align: right;
color: #999;
background: #eee;
width: 3em;
border-right: solid 1px #ddd;
}
table.blob td.lines {
white-space: pre;
}
```
### Tree Listing
```css
table.list td.ls-mode {
font-family: monospace;
width: 10em;
}
table.list td.ls-size {
text-align: right;
width: 5em;
}
```
## Commit View
```css
table.commit-info {
border-collapse: collapse;
border: solid 1px #aaa;
margin-bottom: 1em;
}
table.commit-info th {
text-align: left;
font-weight: bold;
padding: 2px 6px;
vertical-align: top;
}
table.commit-info td {
padding: 2px 6px;
}
div.commit-subject {
font-weight: bold;
font-size: 125%;
margin: 1em 0 0.5em;
}
div.commit-msg {
white-space: pre;
font-family: monospace;
}
div.notes-header {
font-weight: bold;
padding-top: 1em;
}
div.notes {
white-space: pre;
font-family: monospace;
border-left: solid 3px #dd5;
padding: 0.5em;
background: #ffe;
}
```
## Log View
```css
div.commit-graph {
font-family: monospace;
white-space: pre;
color: #000;
}
/* Column colors for commit graph */
.column1 { color: #a00; }
.column2 { color: #0a0; }
.column3 { color: #00a; }
.column4 { color: #aa0; }
.column5 { color: #0aa; }
.column6 { color: #a0a; }
```
## Stats View
```css
table.stats {
border-collapse: collapse;
border: solid 1px #aaa;
}
table.stats th {
text-align: left;
padding: 2px 6px;
background: #ddd;
}
table.stats td {
padding: 2px 6px;
}
div.stats-graph {
/* bar chart container */
}
```
## Form Elements
```css
div.cgit-panel {
float: right;
margin: 0 0 0.5em 0.5em;
padding: 4px;
border: solid 1px #aaa;
background: #eee;
}
div.cgit-panel b {
display: block;
margin-bottom: 2px;
}
div.cgit-panel select,
div.cgit-panel input {
font-size: 11px;
}
```
## Customization Strategies
### Method 1: Override Stylesheet
Create a custom CSS file that overrides specific rules:
```css
/* /cgit/custom.css */
body {
background: #1a1a2e;
color: #e0e0e0;
}
div#cgit {
background: #16213e;
}
table.list th {
background: #0f3460;
color: #e0e0e0;
}
```
```ini
css=/cgit/cgit.css
css=/cgit/custom.css
```
### Method 2: Replace Stylesheet
Replace the default stylesheet entirely:
```ini
css=/cgit/mytheme.css
```
### Method 3: head-include
Inject inline styles via the `head-include` directive:
```ini
head-include=/etc/cgit/extra-head.html
```
```html
<!-- /etc/cgit/extra-head.html -->
<style>
body { background: #f0f0f0; }
</style>
```
## CSS Classes Reference
### Layout Classes
| Class/ID | Element | Description |
|----------|---------|-------------|
| `#cgit` | div | Main container |
| `#header` | table | Site header |
| `#navigation` | table | Tab navigation |
| `#content` | div | Page content area |
| `.footer` | div | Page footer |
### Content Classes
| Class | Element | Description |
|-------|---------|-------------|
| `.list` | table | Data listing (repos, files, refs) |
| `.blob` | table | File content display |
| `.diff` | table | Unified diff |
| `.ssdiff` | table | Side-by-side diff |
| `.diffstat` | table | Diff statistics |
| `.commit-info` | table | Commit metadata |
| `.stats` | table | Statistics data |
| `.cgit-panel` | div | Control panel |
### Diff Classes
| Class | Element | Description |
|-------|---------|-------------|
| `.add` | div/span | Added lines/chars |
| `.del` | div/span | Deleted lines/chars |
| `.hunk` | div | Hunk header |
| `.ctx` | div | Context lines |
| `.head` | div | File header |
| `.changed` | td | Modified line (ssdiff) |
| `.lineno` | td | Line number column |
### Status Classes
| Class | Description |
|-------|-------------|
| `.upd` | Modified file |
| `.add` | Added file |
| `.del` | Deleted file |
| `.mode` | File mode indicator |
| `.graph` | Graph bar container |
|
