postcss-unnot

UnNot

UnNot removes :not selectors while preserving other selectors. This can be useful for outputting CSS for old browsers like Internet Explorer 8.

/* before */
 
.a, .b:not(.c), d {
    color: red;
}
 
/* after */
 
.a, .d {
    color: red;
}

Usage

Add UnNot to your build tool:

npm install postcss-unnot --save-dev

Node

require('postcss-unnot')({ /* options */ }).process(YOUR_CSS);

PostCSS

Add PostCSS to your build tool:

npm install postcss --save-dev

Load UnNot as a PostCSS plugin:

postcss([
    require('postcss-unnot')({ /* options */ })
]);

Gulp

Add Gulp PostCSS to your build tool:

npm install gulp-postcss --save-dev

Enable UnNot within your Gulpfile:

var postcss = require('gulp-postcss');
 
gulp.task('css', function () {
    return gulp.src('./css/src/*.css').pipe(
        postcss([
            require('postcss-unnot')({ /* options */ })
        ])
    ).pipe(
        gulp.dest('./css')
    );
});

Grunt

Add Grunt PostCSS to your build tool:

npm install grunt-postcss --save-dev

Enable UnNot within your Gruntfile:

grunt.loadNpmTasks('grunt-postcss');
 
grunt.initConfig({
    postcss: {
        options: {
            processors: [
                require('postcss-unnot')({ /* options */ })
            ]
        },
        dist: {
            src: 'css/*.css'
        }
    }
});

Options

method

Type: String
Default: 'remove'

remove

Remove any selectors with :not functions.

/* before */
 
.a, .b:not(.c), d {
    color: red;
}
 
/* after */
 
.a, .d {
    color: red;
}

move

Move any selectors with :not functions into a cloned rule.

/* before */
 
.a, .b:not(.c), .d {}
 
/* after */
 
.b:not(.c) {
    color: red;
}
 
.a, .d {
    color: red;
}

pseudo

Remove only the :not functions from selectors.

/* before */
 
.a, .b:not(.c), .d {
    color: red;
}
 
/* after */
 
.a, .b, .d {
    color: red;
}

warn

Warn when a :not function is used.