diff -r 000000000000 -r 6474c204b198 layout/reftests/css-ui-invalid/default-style/style.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/reftests/css-ui-invalid/default-style/style.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+:not(output).invalid-ref {
+  box-shadow: 0 0 1.5px 1px red;
+}
+
+:not(output):-moz-focusring.invalid-ref {
+  box-shadow: 0 0 2px 2px rgba(255,0,0,0.4);
+}
+
+output.invalid-ref {
+  color: red;
+}
+
+.barred-ref {
+}