diff --git a/package.json b/package.json
index ae79782..8c1e225 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,11 @@
   "version": "2025.01.24",
   "private": true,
   "packageManager": "npm@11.4.1",
+  "browserslist": [
+    ">0.2%",
+    "not dead",
+    "IE 11"
+  ],
   "scripts": {
     "format": "prettier --write .",
     "dev": "astro dev",
diff --git a/src/scss/_variables.scss b/src/scss/_variables.scss
index 1e0a4ef..039ba4f 100644
--- a/src/scss/_variables.scss
+++ b/src/scss/_variables.scss
@@ -1,5 +1,5 @@
 $colorBg: #181818;
-$colorBgAlt: hwb(0deg 0% 100% / 20%);
+$colorBgAlt: rgba(0, 0, 0, 0.2);
 $colorBgCode: #3b3d42;
 $colorBlossom: #6da13f;
 $colorFade: #598332;