diff --git a/Tests/LibWeb/Text/expected/css/parse-nested-pseudo-selectors-as-selectors.txt b/Tests/LibWeb/Text/expected/css/parse-nested-pseudo-selectors-as-selectors.txt
new file mode 100644
index 00000000000..818d9f935ce
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/css/parse-nested-pseudo-selectors-as-selectors.txt
@@ -0,0 +1 @@
+Color is: "rgb(0, 128, 0)", should be "rgb(0, 128, 0)"
diff --git a/Tests/LibWeb/Text/input/css/parse-nested-pseudo-selectors-as-selectors.html b/Tests/LibWeb/Text/input/css/parse-nested-pseudo-selectors-as-selectors.html
new file mode 100644
index 00000000000..22a36bdc9d0
--- /dev/null
+++ b/Tests/LibWeb/Text/input/css/parse-nested-pseudo-selectors-as-selectors.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<style>
+    @media all {
+        div:is(#target) {
+            color: rgb(0, 128, 0);
+        }
+    }
+</style>
+<script src="../include.js"></script>
+<div id="target">This text should look green</div>
+<script>
+    test(() => {
+        let target = document.getElementById("target");
+        println(`Color is: "${getComputedStyle(target).color}", should be "rgb(0, 128, 0)"`);
+    });
+</script>
