diff --git a/htdocs/css/mpd.css b/htdocs/css/mpd.css
index 1987ce2..4cdc5ac 100644
--- a/htdocs/css/mpd.css
+++ b/htdocs/css/mpd.css
@@ -184,6 +184,6 @@ button {
   .sticky {
     position: sticky;
     top: 55px;
-	z-index: 99;
+    z-index: 99;
   }
 }