postcss-preset-env stage 0 is required for custom-media

1 files changed, 1 insertions, 1 deletions

diff --git a/vnext/webpack.config.js b/vnext/webpack.config.js
index 29af95b5..1c7ed6d2 100644
--- a/vnext/webpack.config.js
+++ b/vnext/webpack.config.js
@@ -48,7 +48,7 @@ module.exports = (env, argv) => {
                                 postcssOptions: {
                                     plugins: [
                                         'stylelint',
-                                        'postcss-preset-env'
+                                        ['postcss-preset-env', { stage: 0 } ]
                                     ]
                                 }
                             }