diff -r 000000000000 -r 6474c204b198 layout/reftests/tab-size/spaces-4-offset.html
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/reftests/tab-size/spaces-4-offset.html	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+<pre>123456B Z
+1234567B    Z
+12345678B   Z
+123456789B  Z
+1234567890B Z
+12345678901B    Z</pre>