diff --git a/.forgejo/workflows/test-html-css.yml b/.forgejo/workflows/test-html-css.yml
index 02eee96..0e4ad4c 100644
--- a/.forgejo/workflows/test-html-css.yml
+++ b/.forgejo/workflows/test-html-css.yml
@@ -1,5 +1,7 @@
 on:
   push:
+  pull_request:
+    types: [opened, review_requested]
 
 jobs:
   test-html-css: