diff --git a/tests/src/simple.html b/tests/src/simple.html
index 3bef2a3..c9a196f 100644
--- a/tests/src/simple.html
+++ b/tests/src/simple.html
@@ -13 +13,7 @@
- background-image: radial-gradient(black, white);
+ background-image: radial-gradient(
+ ellipse farthest-corner,
+ red,
+ yellow 10%,
+ #1e90ff 50%,
+ beige
+ );