cssnano installed and configured

package.json

@@ -36,10 +36,11 @@
         "@storybook/addon-links": "4.1.11",
         "@storybook/addons": "4.1.11",
         "@storybook/react": "4.1.11",
-        "autoprefixer": "9.5.1",
         "babel-loader": "8.0.6",
         "copy-webpack-plugin": "5.0.3",
         "css-loader": "2.1.1",
+        "cssnano": "4.1.10",
+        "cssnano-preset-advanced": "4.0.7",
         "html-webpack-plugin": "3.2.0",
         "less": "3.9.0",
         "less-loader": "5.0.0",

webpack.config.js

@@ -48,7 +48,26 @@ module.exports = {
                         options: {
                             ident: 'postcss-id',
                             plugins: () => [
-                                require('autoprefixer')()
+                                require('cssnano')({
+                                    preset: ['advanced', {
+                                        autoprefixer: true,
+                                        calc: false,
+                                        convertValues: false,
+                                        discardComments: {
+                                            removeAll: true,
+                                        },
+                                        discardOverridden: false,
+                                        mergeIdents: false,
+                                        normalizeDisplayValues: false,
+                                        normalizePositions: false,
+                                        normalizeRepeatStyle: false,
+                                        normalizeUnicode: false,
+                                        normalizeUrl: false,
+                                        reduceIdents: false,
+                                        reduceInitial: false,
+                                        zindex: false
+                                    }]
+                                })
                             ]
                         }
                     },
@@ -57,7 +76,6 @@ module.exports = {
                         options: {
                             strictMath: true,
                             noIeCompat: true,
-                            compress: true,
                             paths: [
                                 path.resolve(__dirname, 'node_modules/stremio-colors'),
                                 path.resolve(__dirname, 'src/common')