diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index 6ebebd8..c35b70f 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -2,7 +2,7 @@
 
 name: Node CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
diff --git a/lib/fonts/_hei.scss b/lib/fonts/_hei.scss
index 3e9130d..f3877e2 100644
--- a/lib/fonts/_hei.scss
+++ b/lib/fonts/_hei.scss
@@ -223,7 +223,7 @@
     local("Noto Sans CJK KR Heavy");
 }
 
-font-face {
+@font-face {
   font-family: "Heti Hei SC Black Fallback";
   font-weight: 800;
   src:
diff --git a/lib/fonts/_song.scss b/lib/fonts/_song.scss
index 3d850c8..2fbaa75 100644
--- a/lib/fonts/_song.scss
+++ b/lib/fonts/_song.scss
@@ -23,8 +23,7 @@
 @font-face {
   font-family: "Heti Song Light Fallback";
   font-weight: 200;
-  src:
-    local("SimSun");
+  src: local("SimSun");
 }
 
 // 粗体 Bold
@@ -40,8 +39,7 @@
 @font-face {
   font-family: "Heti Song Bold Fallback";
   font-weight: 600;
-  src:
-    local("SimSun");
+  src: local("SimSun");
 }
 
 // 黑体 Black