diff --git a/css/ext6-pmx.css b/css/ext6-pmx.css
index 898c5bc..7ee536d 100644
--- a/css/ext6-pmx.css
+++ b/css/ext6-pmx.css
@@ -1,3 +1,7 @@
 .pmx-clear-trigger {
     background-image: url(../images/pmx-clear-trigger.png);
 }
+
+.pmx-hint {
+    background-color: LightYellow;
+}