From 5418dcdff8a511915e96776088a948b68e1a3b04 Mon Sep 17 00:00:00 2001
From: Florian Mounier <florian.mounier@kozea.fr>
Date: Wed, 21 Jan 2015 12:05:45 +0100
Subject: [PATCH] Fix #176

---
 pygal/config.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pygal/config.py b/pygal/config.py
index 0f7c09ba..8a0a8075 100644
--- a/pygal/config.py
+++ b/pygal/config.py
@@ -243,19 +243,19 @@ class Config(CommonConfig):
         "Margin around chart")
 
     margin_top = Key(
-        20, int, "Look",
+        None, int, "Look",
         "Margin around top of chart")
 
     margin_right = Key(
-        20, int, "Look",
+        None, int, "Look",
         "Margin around right of chart")
 
     margin_bottom = Key(
-        20, int, "Look",
+        None, int, "Look",
         "Margin around bottom of chart")
 
     margin_left = Key(
-        20, int, "Look",
+        None, int, "Look",
         "Margin around left of chart")
 
     tooltip_border_radius = Key(0, int, "Look", "Tooltip border radius")