diff --git a/core/css/buttons.css b/core/css/buttons.css
index d3e9cf6..75c02c9 100644
--- a/core/css/buttons.css
+++ b/core/css/buttons.css
@@ -234,6 +234,7 @@ button.formbutton a {
 	border-top: none;
 	overflow-y: auto;
 	max-height: 280px;
+	z-index: 10;
 }
 
 *.wdropdown.active > div.select {