[mirotalksfu] - fix typo

public/css/VideoGrid.css

@@ -118,8 +118,8 @@
     position: absolute;
     top: 0;
     left: 0;
-    padding: 10px;
-    background: rgba(0, 0, 0, 0.2);
+    padding: 8px;
+    background: rgba(0, 0, 0, 0.1);
     font-size: small;
     font-weight: bold;
     text-align: center;
@@ -208,4 +208,4 @@ input[type='range'] {
     .username {
         font-size: 10px;
     }
-}
+}