diff --git a/web/assets/css/error.css b/web/assets/css/error.css
new file mode 100644
index 0000000..55028f2
--- /dev/null
+++ b/web/assets/css/error.css
@@ -0,0 +1,7 @@
+#error {
+    font-size: 3.5rem;
+    line-height: 5rem;
+    text-align: center;
+    margin: 6rem 0; }
+
+#error h1 { font-size: 8rem; }
\ No newline at end of file
diff --git a/web/templates/errorXXX.pug b/web/templates/errorXXX.pug
index ad9dfa3..88b07a3 100755
--- a/web/templates/errorXXX.pug
+++ b/web/templates/errorXXX.pug
@@ -4,14 +4,7 @@ block meta_description
     meta(name='description' content=http.StatusText(code))
 
 block append head
-    style(type="text/css").
-        #error {
-            font-size: 3.5rem;
-            line-height: 5rem;
-            text-align: center;
-            margin: 6rem 0; }
-
-        #error h1 { font-size: 8rem; }
+    link(href='/assets/css/error.css' rel='stylesheet')
 
 block nav
     a(href='/') Home