[gnome-boxes] properties: Add some space around content

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit e0fd96efb03a1a9fb2844bb2acdd4ec7591f4a0c
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Nov 25 15:46:30 2014 +0000

    properties: Add some space around content

 src/properties.vala |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/properties.vala b/src/properties.vala
index 3d15910..b20dc9b 100644
--- a/src/properties.vala
+++ b/src/properties.vala
@@ -58,6 +58,8 @@ private class Boxes.Properties: Gtk.Notebook, Boxes.UI {
             grid.valign = Gtk.Align.START;
             var scrolled_win = new Gtk.ScrolledWindow (null, null);
             scrolled_win.min_content_height = 480;
+            scrolled_win.margin_start = 20;
+            scrolled_win.margin_end = 20;
             scrolled_win.set_policy (Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
             scrolled_win.add (grid);
             pack_end (scrolled_win, true, true);