From 9b7d1ef86cf733a1c8ff1d7733a7b243d1adbdbb Mon Sep 17 00:00:00 2001
From: yumoqing <yumoqing@gmail.com>
Date: Sat, 27 Mar 2021 14:50:29 +0800
Subject: [PATCH] bugfix

---
 kivyblocks/dg.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kivyblocks/dg.py b/kivyblocks/dg.py
index 830dce6..abc8373 100644
--- a/kivyblocks/dg.py
+++ b/kivyblocks/dg.py
@@ -305,8 +305,8 @@ class DataGrid(WidgetReady, BoxLayout):
 		]
 	}
 	"""
-	header_css = StringProperty(None)
-	body_css = StringProperty(None)
+	header_css = StringProperty("default")
+	body_css = StringProperty("default")
 	noheader = BooleanProperty(False)
 	row_selected = BooleanProperty(False)
 	def __init__(self,**options):