postcss-nested
Advanced tools
Package description
The postcss-nested npm package allows developers to use nested syntax in CSS, similar to what is possible in preprocessors like SASS and LESS. It processes CSS files and unwraps nested rules following the CSS Nesting specification. This makes the CSS more readable and maintainable by organizing styles in a hierarchical manner.
Nesting Rules
This feature allows you to nest hover and other pseudo-class selectors inside the main selector block, making the CSS structure more intuitive and easier to manage.
a {
color: red;
&:hover {
color: green;
}
}Nesting Properties
Enables grouping of properties under a common namespace, which can be particularly useful for font, margin, and padding definitions, leading to a cleaner and more organized style definition.
a {
font: {
weight: bold;
size: 14px;
family: Arial, sans-serif;
}
}Nesting At-Rules
Supports nesting of at-rules like @media, allowing for more streamlined and readable media query definitions within the relevant selector context.
@media (min-width: 768px) {
body {
background: lightblue;
a {
color: navy;
}
}
}Sass is a mature, stable, and powerful professional grade CSS extension language. It provides similar nesting functionalities but with a broader feature set for styling. Compared to postcss-nested, Sass offers more features like variables, mixins, and functions for more dynamic styling.
Less is a backward-compatible language extension for CSS. It also supports nesting, along with variables, mixins, and functions, similar to Sass. Less and postcss-nested offer comparable nesting capabilities, but Less includes additional features that extend CSS more comprehensively.
Stylus is an expressive, dynamic, and robust CSS preprocessor that supports nested selectors, variables, mixins, and arithmetic operations. It provides a more flexible syntax compared to postcss-nested, allowing for both a concise and expressive way to write CSS.
Readme
PostCSS plugin to unwrap nested rules like it Sass does.
.phone {
&_title {
width: 500px
@media (max-width: 500px) {
width: auto
}
}
body.is_dark &_title {
color: white
}
img {
display: block
}
}
will be processed to:
.phone_title {
width: 500px
}
@media (max-width: 500px) {
.phone_title {
width: auto
}
}
body.is_dark phone_title {
color: white
}
.phone img {
display: block
}
See PostCSS docs for source map options and other special cases.
grunt.initConfig({
postcss: {
options: {
processors: [ require('postcss-nested').postcss ]
},
dist: {
src: 'css/*.css'
}
}
});
grunt.loadNpmTasks('grunt-postcss');
var postcss = require('gulp-postcss');
gulp.task('css', function () {
return gulp.src('./src/*.css')
.pipe(postcss([ require('postcss-nested') ]))
.pipe(gulp.dest('./dest'));
});
var postcss = require('postcss');
var nested = require('postcss-nested');
var processed = postcss(nested).process(css).css;
FAQs
PostCSS plugin to unwrap nested rules like how Sass does it
The npm package postcss-nested receives a total of 7,369,874 weekly downloads. As such, postcss-nested popularity was classified as popular.
We found that postcss-nested demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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