From 2d033d0e0f45ce11b2b3a9981fd94e7a77fe1715 Mon Sep 17 00:00:00 2001
From: Darren Burns <darrenb900@gmail.com>
Date: Thu, 16 Jun 2022 14:33:27 +0100
Subject: [PATCH] Checking empty rules

---
 tests/css/test_stylesheet.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tests/css/test_stylesheet.py b/tests/css/test_stylesheet.py
index 5bb78dc80..d8d067cd9 100644
--- a/tests/css/test_stylesheet.py
+++ b/tests/css/test_stylesheet.py
@@ -23,6 +23,17 @@ def test_stylesheet_apply_takes_final_rule_in_specificity_clash():
     assert node.styles.background == Color(0, 0, 255)  # background: blue
 
 
+def test_stylesheet_apply_empty_rules():
+    css = ".a {} .b {}"
+
+    stylesheet = Stylesheet()
+    stylesheet.source["test.css"] = css
+    stylesheet.parse()
+
+    node = DOMNode(classes="a b")
+    stylesheet.apply(node)
+
+
 @pytest.mark.parametrize(
     "css_value,expectation,expected_color",
     [