diff --git a/main/index.css b/main/index.css
index 26b455b1..15cdeb91 100644
--- a/main/index.css
+++ b/main/index.css
@@ -174,6 +174,7 @@ body.drag::before {
 
 .player {
   height: 100%;
+  background-color: #000;
 }
 
 .player video {