[gnome-photos] theme: Fix invalid use of 'font' shorthand

[Florian Müllner <fmuellner src gnome org>]

commit 41f56715ba199b6a5164aabe78ea67ad9264a6bf
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Jun 9 10:16:32 2016 +0200

    theme: Fix invalid use of 'font' shorthand
    
    The 'font' shorthand requires at least 'font-family' and 'font-size'
    according to the spec, and recent GTK+ versions no longer accept it
    without a family/size.

 data/Adwaita.css |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/Adwaita.css b/data/Adwaita.css
index f5e20ef..3ed6468 100644
--- a/data/Adwaita.css
+++ b/data/Adwaita.css
@@ -21,7 +21,7 @@ GdMainIconView.content-view.cell:active {
     background-size: contain;
     background-color: transparent;
     color: @theme_base_color;
-    font: bold;
+    font-weight: bold;
 }
 
 .photos-entry-tag {