[gnome-calculator] Use 12px padding for the window (bgo#743538)

[Robert Roth <robertroth src gnome org>]

commit 063bd9e442c55d87f38fe435ba976ff01d9ec0e0
Author: Robert Roth <robert roth off gmail com>
Date:   Wed Oct 19 13:08:12 2016 +0300

    Use 12px padding for the window (bgo#743538)

 data/calculator.css |    5 +++++
 data/math-window.ui |    2 +-
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/data/calculator.css b/data/calculator.css
index d12a00e..13f11c1 100644
--- a/data/calculator.css
+++ b/data/calculator.css
@@ -9,6 +9,11 @@
 .equation-symbol {
   padding: 0px 12px;
 }
+
+window > grid {
+  padding: 12px;
+}
+
 .math-buttons button {
 }
 
diff --git a/data/math-window.ui b/data/math-window.ui
index 53c1848..0b81b74 100644
--- a/data/math-window.ui
+++ b/data/math-window.ui
@@ -54,7 +54,7 @@
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="vexpand">True</property>
-        <property name="border_width">6</property>
+        <property name="border_width">0</property>
         <property name="orientation">vertical</property>
         <property name="row_spacing">6</property>
         <child>