diff --git a/src/pages/course/video.module.scss b/src/pages/course/video.module.scss
index 2ce65ee..c3a07e1 100644
--- a/src/pages/course/video.module.scss
+++ b/src/pages/course/video.module.scss
@@ -56,8 +56,7 @@
 
     .video-box {
       width: 100%;
-      // padding-bottom: calc(9 / 16 * 100%);
-      height: auto;
+      padding-bottom: calc(9 / 16 * 100%);
       margin: 0 auto;
       border-radius: 8px;
       position: relative;