Awesome

UnRoot

UnRoot replaces selectors containing :root with html. This can be useful for outputting CSS for older browsers like Internet Explorer 8.

/* before */

:root {
    background-color: black;
    color: white;
}

/* after */

html {
    background-color: black;
    color: white;
}

Usage

Follow these steps to use UnRoot.

Add UnRoot to your build tool:

npm install postcss-unroot --save-dev

Node

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

PostCSS

Add PostCSS to your build tool:

npm install postcss --save-dev

Load UnRoot as a PostCSS plugin:

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

Gulp

Add Gulp PostCSS to your build tool:

npm install gulp-postcss --save-dev

Enable UnRoot within your Gulpfile:

var postcss = require('gulp-postcss');

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

Grunt

Add Grunt PostCSS to your build tool:

npm install grunt-postcss --save-dev

Enable UnRoot within your Gruntfile:

grunt.loadNpmTasks('grunt-postcss');

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

Options

method

Type: String
Default: 'replace'

replace

Replace any selectors with :root with html.

/* before */

:root {
    color: red;
}

/* after */

html {
    color: red;
}

copy

Copy any selectors with :root into a cloned rule as html.

/* before */

:root {
    color: red;
}

/* after */

html {
    color: red;
}

:root {
    color: red;
}

warn

Warn when a :root selector is used.