pascalduezpostcss-quantity-queries
PostCSS plugin enabling quantity-queries.
This plugin is derived from the Sass Quantity Queries mixins by Daniel Guillan.
For informations about quantity queries check those resources:
Quantity Queries for CSS
Styling elements based on sibling count
Daniel’s demo on CodePen
Installation
npm install postcss-quantity-queries --save-devUsage
const fs = require('fs');
const postcss = require('postcss');
const quantityQueries = require('postcss-quantity-queries');
const input = fs.readFileSync('input.css', 'utf8');
postcss()
.use(quantityQueries)
.process(input)
.then(result => {
fs.writeFileSync('output.css', result.css);
});API
at-least
Target count items or more:
:at-least(count) { ... }input:
ul > li:at-least(4) {
color: rebeccapurple;
}output:
ul > li:nth-last-child(n+4),
ul > li:nth-last-child(n+4) ~ li {
color: rebeccapurple;
}at-most
Target count items or less:
:at-most(count) { ... }input:
ul > li:at-most(4) {
color: rebeccapurple;
}output:
ul > li:nth-last-child(-n+4):first-child,
ul > li:nth-last-child(-n+4):first-child ~ li {
color: rebeccapurple;
}between
Target a range of items between start and end:
:between(start, end) { ... }input:
ul > li:between(4, 6) {
color: rebeccapurple;
}output:
ul > li:nth-last-child(n+4):nth-last-child(-n+6):first-child,
ul > li:nth-last-child(n+4):nth-last-child(-n+6):first-child ~ li {
color: rebeccapurple;
}exactly
Target exactly count items:
:exactly(count) { ... }input:
ul > li:exactly(4) {
color: rebeccapurple;
}output:
ul > li:nth-last-child(4):first-child,
ul > li:nth-last-child(4):first-child ~ li {
color: rebeccapurple;
}All pseudo-selector extensions
| Selector | Description |
|---|---|
# :at-least(count) { … } |
Target count items or more |
# :at-most(count) { … } |
Target count items or less |
# :between(start, end) { … } |
Target a range of items between start and end |
# :exactly(count) { … } |
Target exactly count items |
At-rule API
There is also an at-rule API available, similar to pre-processors.
Although it might get deprecated at some point.
The recommended API is the pseudo-selectors one.
@at-least count [, selector] { ... }@at-most count [, selector] { ... }@between start end [, selector] { ... }@exactly count [, selector] { ... }ul > li {
@at-least 4 span {
color: rebeccapurple;
}
}
ul > li {
@between 4 6 {
color: rebeccapurple;
}
}Check out the tests for more examples.
Credits
Licence
postcss-quantity-queries is unlicensed.