diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
new file mode 100644
index 0000000..415ae4b
--- /dev/null
+++ b/.github/workflows/format.yml
@@ -0,0 +1,22 @@
+name: Prettier
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  prettier:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          # Make sure the actual branch is checked out when running on pull requests
+          ref: ${{ github.head_ref }}
+
+      - name: Run prettier
+        uses: creyD/prettier_action@v4.3
+        with:
+          commit_message: "style: format code with prettier"
+          prettier_options: "--write styles/**/*.css"
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..ce5bd52
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,2 @@
+/styles/codeberg/
+/styles/reddit/
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..9a8be12
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,10 @@
+{
+  "overrides": [
+    {
+      "files": "styles/**/*.css",
+      "options": {
+        "parser": "less"
+      }
+    }
+  ]
+}