[gtk+] Properly declare the font CSS property

[Emilio Pozuelo Monfort <epm src gnome org>]

commit ca6c928c5ba9516e70f4e22f1717aa113fb6f20a
Author: Emilio Pozuelo Monfort <pochu27 gmail com>
Date:   Thu Jul 28 17:13:15 2016 +0200

    Properly declare the font CSS property
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769004

 testsuite/reftests/label-sizing.css |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/testsuite/reftests/label-sizing.css b/testsuite/reftests/label-sizing.css
index ca06c8f..809b68e 100644
--- a/testsuite/reftests/label-sizing.css
+++ b/testsuite/reftests/label-sizing.css
@@ -1,5 +1,5 @@
 * {
-  font: Monospace 12;
+  font: 12px Monospace;
   padding: 0;
 }