Neutrino CSSNext preset

neutrino-preset-cssnext is a Neutrino preset that adds support for
cssnext.

Documentation

Install this preset to your development dependencies, then set it in
.neutrinorc.js:

  module.exports = {
    use: [
      "neutrino-preset-web",
      "neutrino-preset-cssnext",
    ],
    ...
  };

You can configure the features through options object, following the
instructions at cssnext documentation and the
Browserslist query syntax).

This is an example using options:

  module.exports = {
    use: [
      "neutrino-preset-web",
      ["neutrino-preset-cssnext", {
        browsers: ["> 1%", "last 2 versions"],
      }],
    ],
    ...
  };

Breaking Changes

Bumping to Neutrino 7 and cssnext 3.
The most meaningful change is in image-set polyfill.
See https://github.com/MoOx/postcss-cssnext/releases/tag/3.0.0