From 3a06a0b5ff6f97c4ac9d41e137ab98fddad5d384 Mon Sep 17 00:00:00 2001
From: yumoqing <yumoqing@gmail.com>
Date: Fri, 2 Jul 2021 12:13:39 +0800
Subject: [PATCH] bugfix

---
 kivyblocks/widget_css.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kivyblocks/widget_css.py b/kivyblocks/widget_css.py
index 9ae7bdc..4f62e83 100644
--- a/kivyblocks/widget_css.py
+++ b/kivyblocks/widget_css.py
@@ -28,6 +28,7 @@ class WidgetCSS(object):
 		self.set_background_color()
 
 	def on_size(self, o, s):
+		super(WidgetCSS, self).on_size(o, s)
 		self.set_background_color()
 
 	def on_pos(self, o, p):