diff -r 000000000000 -r 6474c204b198 layout/inspector/tests/bug856317.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/inspector/tests/bug856317.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/*
+ * Bug 856317 - expose the column number of style rules via inIDOMUtils
+ */
+
+/* simplest possible */
+.alpha {
+}
+
+/* with leading whitespace */
+    #beta {
+    }
+
+/* with a comment before the rule */ #gamma {
+}
+
+/* mixed spaces and tab characters */
+  	 #delta {
+}
+
+/* long lines, like those produced by CSS minifiers
+ * (overflows a 16-bit unsigned int)
+ */
+ .epsilon{ background-image: 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