From b14b9c88f323246135e69d63ab4cc0e6dcbaadab Mon Sep 17 00:00:00 2001
From: Alexey Pyltsyn <lex61rus@gmail.com>
Date: Tue, 8 Dec 2020 18:53:35 +0300
Subject: [PATCH] fix(v2): do not treat at-rules during CSS minification
 (#3896)

---
 packages/docusaurus/src/webpack/utils.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/docusaurus/src/webpack/utils.ts b/packages/docusaurus/src/webpack/utils.ts
index a30faeca92..58f63c4fba 100644
--- a/packages/docusaurus/src/webpack/utils.ts
+++ b/packages/docusaurus/src/webpack/utils.ts
@@ -440,6 +440,7 @@ export function getMinimizer(useSimpleCssMinifier = false): Plugin[] {
               2: {
                 all: true,
                 restructureRules: true,
+                removeUnusedAtRules: false,
               },
             },
           },