diff --git a/dev.css b/dev.css
index be3c552..65b8c17 100644
--- a/dev.css
+++ b/dev.css
@@ -196,6 +196,12 @@ a:hover {
 	text-decoration: underline;
 }
 
+@supports not (light-dark()) {
+	a {
+		text-decoration: underline;
+	}
+}
+
 mark {
 	border-radius: 0.375rem;
 	padding: 0.125rem 0.25rem;