From d458bab3171d70ec8e57f03b66a08333f9811942 Mon Sep 17 00:00:00 2001
From: Tim van der Lippe <TimvdLippe@users.noreply.github.com>
Date: Sat, 10 Feb 2018 16:39:36 +0100
Subject: [PATCH] Add note to updateStyles regarding updates to CSS mixins

---
 lib/mixins/element-mixin.html | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/mixins/element-mixin.html b/lib/mixins/element-mixin.html
index 73ffe10fb0..777db15243 100644
--- a/lib/mixins/element-mixin.html
+++ b/lib/mixins/element-mixin.html
@@ -610,6 +610,9 @@
        *
        * These properties are retained unless a value of `null` is set.
        *
+       * Note: This function does not support updating CSS mixins.
+       * You can not dynamically change the value of an `@apply`.
+       *
        * @param {Object=} properties Bag of custom property key/values to
        *   apply to this element.
        * @return {void}