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authorlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:10:59 +0800
committerlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:41:44 +0800
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-# postcss-pseudoelements
-
-postcss helper for pseudo element colons, it handles double -> single and single -> double.
-
-## Usage
-
-### Double to Single (default)
-```javascript
-var pe = require('postcss-pseudoelements');
-var postcss = require('postcss');
-var options = {
- single: true, // default
- selectors: ['before','after','first-letter','first-line'], // default
-};
-
-var processor = postcss(pe(options));
-
-console.log(processor.process('a:before {}').css) // outputs: a:before {}
-console.log(processor.process('a::before {}').css) // outputs: a:before {}
-```
-
-### Single to Double
-
-```javascript
-var pe = require('postcss-pseudoelements');
-var postcss = require('postcss');
-var options = {
- single: false,
- selectors: ['before','after','first-letter','first-line'], // default
-};
-
-var processor = postcss(pe(options));
-
-console.log(processor.process('a:before {}').css) // outputs: a::before {}
-console.log(processor.process('a::before {}').css) // outputs: a::before {}
-```
-
-## Options
-
-`single`: Boolean
-* `true` (default) if you want to move from double colon to colon for backwards compatibility
-* `false` if you need double colons
-
-`selectors`: `Array` of pseudo-element selectors to rewrite with single and double colons. Note that these values will be used in a regexp without escaping. Defaults to `['before','after','first-letter','first-line']`
-
-example selectors:
-```
-var options = {
- selectors: [
- 'hover',
- 'focus',
- 'active',
- 'after',
- 'ms-expand',
- 'not',
- 'first-child',
- 'last-child'
- ],
-};
-```
-
-### Defaults
-```javascript
-var options = {
- single: true,
- [
- 'before',
- 'after',
- 'first-letter',
- 'first-line'
- ]
-};
-```