diff --git a/resources/www/prod/skins/ui-components/_diapo.scss b/resources/www/prod/skins/ui-components/_diapo.scss
index 2b20f9de01..6f683bdae6 100644
--- a/resources/www/prod/skins/ui-components/_diapo.scss
+++ b/resources/www/prod/skins/ui-components/_diapo.scss
@@ -51,7 +51,7 @@ $diapoBorderColor: $darkerBorderColor !default;
   .bottom {
     position: absolute;
     bottom: 0;
-    z-index: 100;
+    z-index: 99;
     &.actions {
       /*.action-icon {
         cursor: pointer;