fix: only use getComputedStyle with elements (#13366)

.changeset/cool-yaks-run.md

@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: only use getComputedStyle with elements

packages/svelte/src/animate/index.js

@@ -52,7 +52,7 @@ function get_zoom(element) {
 
 	while (current !== null) {
 		zoom *= +getComputedStyle(current).zoom;
-		current = /** @type {Element | null} */ (current.parentNode);
+		current = /** @type {Element | null} */ (current.parentElement);
 	}
 
 	return zoom;