diff --git a/webpack.config.js b/webpack.config.js
index 716421a6..6b753b9f 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -200,9 +200,11 @@ module.exports = function (_, env) {
 
       new OptimizeCssAssetsPlugin({
         cssProcessorOptions: {
-          zindex: false,
-          discardComments: { removeAll: true }
+          postcssReduceIdents: {
             counterStyle: false,
+            gridTemplate: false,
+            keyframes: false
+          }
         }
       }),