diff --git a/public/static/home/css/common.css b/public/static/home/css/common.css
index c3ad2e18..2ecbedc5 100644
--- a/public/static/home/css/common.css
+++ b/public/static/home/css/common.css
@@ -1328,6 +1328,8 @@
     width: 760px;
     height: 428px;
     margin-bottom: 20px;
+    background: black;
+    position: relative;
 }
 
 .dplayer {