diff --git a/package.json b/package.json
index 96003f7..c0e3c1c 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "live-server": "^1.1.0",
     "node-sass": "^7.0.1",
     "npm-run-all": "^4.1.5",
-    "postcss-cli": "^2.6.0",
+    "postcss-cli": "^9.1.0",
     "sitedown": "^5.0.1",
     "stylelint": "^7.2.0",
     "stylelint-config-standard": "^13.0.0",
@@ -43,7 +43,8 @@
   "scripts": {
     "generate": "run-s generate:**",
     "generate:css": "run-p 'sass:* -- -o ./'",
-    "generate:prefix": "postcss -u autoprefixer -r style.css",
+    "generate:prefix-1": "postcss -u autoprefixer -r style.css --no-map",
+    "generate:prefix-2": "postcss -u autoprefixer -r serif.css --no-map",
     "generate:sign": "cat style.css | pbcopy && echo \"/*! $npm_package_name v$npm_package_version | ISC License | https://github.com/ungoldman/style.css */\" > style.css && pbpaste >> style.css",
     "generate:sign-2": "cat serif.css | pbcopy && echo \"/*! $npm_package_name v$npm_package_version | ISC License | https://github.com/ungoldman/style.css */\" > serif.css && pbpaste >> serif.css",
     "gh-pages": "npm run site && gh-pages -d site",
diff --git a/serif.css b/serif.css
index 944bef7..44af7f9 100644
--- a/serif.css
+++ b/serif.css
@@ -349,7 +349,8 @@ figcaption {
 abbr[title] {
   border-bottom: none;
   text-decoration: underline;
-  text-decoration: underline dotted;
+  -webkit-text-decoration: underline dotted;
+          text-decoration: underline dotted;
 }
 
 dfn {
diff --git a/style.css b/style.css
index 4b4d5e4..796547f 100644
--- a/style.css
+++ b/style.css
@@ -349,7 +349,8 @@ figcaption {
 abbr[title] {
   border-bottom: none;
   text-decoration: underline;
-  text-decoration: underline dotted;
+  -webkit-text-decoration: underline dotted;
+          text-decoration: underline dotted;
 }
 
 dfn {