diff --git a/src/css/controller.scss b/src/css/controller.scss
index def128c..ba99458 100644
--- a/src/css/controller.scss
+++ b/src/css/controller.scss
@@ -60,7 +60,7 @@
                 }
                 &~.dplayer-bar-preview {
                     opacity: 0;
-                },
+                }
                 &~.dplayer-bar-time {
                     opacity: 0;
                 }